Change win32 file suffix
diff --git a/BUILD b/BUILD
index b69c940..64e6030 100644
--- a/BUILD
+++ b/BUILD
@@ -53,7 +53,7 @@
     "src/core/lib/support/murmur_hash.h",
     "src/core/lib/support/stack_lockfree.h",
     "src/core/lib/support/string.h",
-    "src/core/lib/support/string_win32.h",
+    "src/core/lib/support/string_windows.h",
     "src/core/lib/support/thd_internal.h",
     "src/core/lib/support/time_precise.h",
     "src/core/lib/support/tmpfile.h",
@@ -69,7 +69,7 @@
     "src/core/lib/support/cpu_windows.c",
     "src/core/lib/support/env_linux.c",
     "src/core/lib/support/env_posix.c",
-    "src/core/lib/support/env_win32.c",
+    "src/core/lib/support/env_windows.c",
     "src/core/lib/support/histogram.c",
     "src/core/lib/support/host_port.c",
     "src/core/lib/support/load_file.c",
@@ -77,29 +77,29 @@
     "src/core/lib/support/log_android.c",
     "src/core/lib/support/log_linux.c",
     "src/core/lib/support/log_posix.c",
-    "src/core/lib/support/log_win32.c",
+    "src/core/lib/support/log_windows.c",
     "src/core/lib/support/murmur_hash.c",
     "src/core/lib/support/slice.c",
     "src/core/lib/support/slice_buffer.c",
     "src/core/lib/support/stack_lockfree.c",
     "src/core/lib/support/string.c",
     "src/core/lib/support/string_posix.c",
-    "src/core/lib/support/string_win32.c",
+    "src/core/lib/support/string_windows.c",
     "src/core/lib/support/subprocess_posix.c",
     "src/core/lib/support/subprocess_windows.c",
     "src/core/lib/support/sync.c",
     "src/core/lib/support/sync_posix.c",
-    "src/core/lib/support/sync_win32.c",
+    "src/core/lib/support/sync_windows.c",
     "src/core/lib/support/thd.c",
     "src/core/lib/support/thd_posix.c",
-    "src/core/lib/support/thd_win32.c",
+    "src/core/lib/support/thd_windows.c",
     "src/core/lib/support/time.c",
     "src/core/lib/support/time_posix.c",
     "src/core/lib/support/time_precise.c",
-    "src/core/lib/support/time_win32.c",
+    "src/core/lib/support/time_windows.c",
     "src/core/lib/support/tls_pthread.c",
     "src/core/lib/support/tmpfile_posix.c",
-    "src/core/lib/support/tmpfile_win32.c",
+    "src/core/lib/support/tmpfile_windows.c",
     "src/core/lib/support/wrap_memcpy.c",
   ],
   hdrs = [
@@ -107,14 +107,14 @@
     "include/grpc/support/atm.h",
     "include/grpc/support/atm_gcc_atomic.h",
     "include/grpc/support/atm_gcc_sync.h",
-    "include/grpc/support/atm_win32.h",
+    "include/grpc/support/atm_windows.h",
     "include/grpc/support/avl.h",
     "include/grpc/support/cmdline.h",
     "include/grpc/support/cpu.h",
     "include/grpc/support/histogram.h",
     "include/grpc/support/host_port.h",
     "include/grpc/support/log.h",
-    "include/grpc/support/log_win32.h",
+    "include/grpc/support/log_windows.h",
     "include/grpc/support/port_platform.h",
     "include/grpc/support/slice.h",
     "include/grpc/support/slice_buffer.h",
@@ -123,7 +123,7 @@
     "include/grpc/support/sync.h",
     "include/grpc/support/sync_generic.h",
     "include/grpc/support/sync_posix.h",
-    "include/grpc/support/sync_win32.h",
+    "include/grpc/support/sync_windows.h",
     "include/grpc/support/thd.h",
     "include/grpc/support/time.h",
     "include/grpc/support/tls.h",
@@ -135,7 +135,7 @@
     "include/grpc/impl/codegen/atm.h",
     "include/grpc/impl/codegen/atm_gcc_atomic.h",
     "include/grpc/impl/codegen/atm_gcc_sync.h",
-    "include/grpc/impl/codegen/atm_win32.h",
+    "include/grpc/impl/codegen/atm_windows.h",
     "include/grpc/impl/codegen/log.h",
     "include/grpc/impl/codegen/port_platform.h",
     "include/grpc/impl/codegen/slice.h",
@@ -143,7 +143,7 @@
     "include/grpc/impl/codegen/sync.h",
     "include/grpc/impl/codegen/sync_generic.h",
     "include/grpc/impl/codegen/sync_posix.h",
-    "include/grpc/impl/codegen/sync_win32.h",
+    "include/grpc/impl/codegen/sync_windows.h",
     "include/grpc/impl/codegen/time.h",
   ],
   includes = [
@@ -192,7 +192,7 @@
     "src/core/lib/iomgr/sockaddr.h",
     "src/core/lib/iomgr/sockaddr_posix.h",
     "src/core/lib/iomgr/sockaddr_utils.h",
-    "src/core/lib/iomgr/sockaddr_win32.h",
+    "src/core/lib/iomgr/sockaddr_windows.h",
     "src/core/lib/iomgr/socket_utils_posix.h",
     "src/core/lib/iomgr/socket_windows.h",
     "src/core/lib/iomgr/tcp_client.h",
@@ -402,7 +402,7 @@
     "src/core/lib/security/credentials.c",
     "src/core/lib/security/credentials_metadata.c",
     "src/core/lib/security/credentials_posix.c",
-    "src/core/lib/security/credentials_win32.c",
+    "src/core/lib/security/credentials_windows.c",
     "src/core/lib/security/google_default_credentials.c",
     "src/core/lib/security/handshake.c",
     "src/core/lib/security/json_token.c",
@@ -470,7 +470,7 @@
     "include/grpc/impl/codegen/atm.h",
     "include/grpc/impl/codegen/atm_gcc_atomic.h",
     "include/grpc/impl/codegen/atm_gcc_sync.h",
-    "include/grpc/impl/codegen/atm_win32.h",
+    "include/grpc/impl/codegen/atm_windows.h",
     "include/grpc/impl/codegen/log.h",
     "include/grpc/impl/codegen/port_platform.h",
     "include/grpc/impl/codegen/slice.h",
@@ -478,7 +478,7 @@
     "include/grpc/impl/codegen/sync.h",
     "include/grpc/impl/codegen/sync_generic.h",
     "include/grpc/impl/codegen/sync_posix.h",
-    "include/grpc/impl/codegen/sync_win32.h",
+    "include/grpc/impl/codegen/sync_windows.h",
     "include/grpc/impl/codegen/time.h",
     "include/grpc/grpc_security.h",
     "include/grpc/grpc_security_constants.h",
@@ -537,7 +537,7 @@
     "src/core/lib/iomgr/sockaddr.h",
     "src/core/lib/iomgr/sockaddr_posix.h",
     "src/core/lib/iomgr/sockaddr_utils.h",
-    "src/core/lib/iomgr/sockaddr_win32.h",
+    "src/core/lib/iomgr/sockaddr_windows.h",
     "src/core/lib/iomgr/socket_utils_posix.h",
     "src/core/lib/iomgr/socket_windows.h",
     "src/core/lib/iomgr/tcp_client.h",
@@ -781,7 +781,7 @@
     "include/grpc/impl/codegen/atm.h",
     "include/grpc/impl/codegen/atm_gcc_atomic.h",
     "include/grpc/impl/codegen/atm_gcc_sync.h",
-    "include/grpc/impl/codegen/atm_win32.h",
+    "include/grpc/impl/codegen/atm_windows.h",
     "include/grpc/impl/codegen/log.h",
     "include/grpc/impl/codegen/port_platform.h",
     "include/grpc/impl/codegen/slice.h",
@@ -789,7 +789,7 @@
     "include/grpc/impl/codegen/sync.h",
     "include/grpc/impl/codegen/sync_generic.h",
     "include/grpc/impl/codegen/sync_posix.h",
-    "include/grpc/impl/codegen/sync_win32.h",
+    "include/grpc/impl/codegen/sync_windows.h",
     "include/grpc/impl/codegen/time.h",
     "include/grpc/census.h",
   ],
@@ -953,7 +953,7 @@
     "include/grpc/impl/codegen/atm.h",
     "include/grpc/impl/codegen/atm_gcc_atomic.h",
     "include/grpc/impl/codegen/atm_gcc_sync.h",
-    "include/grpc/impl/codegen/atm_win32.h",
+    "include/grpc/impl/codegen/atm_windows.h",
     "include/grpc/impl/codegen/log.h",
     "include/grpc/impl/codegen/port_platform.h",
     "include/grpc/impl/codegen/slice.h",
@@ -961,7 +961,7 @@
     "include/grpc/impl/codegen/sync.h",
     "include/grpc/impl/codegen/sync_generic.h",
     "include/grpc/impl/codegen/sync_posix.h",
-    "include/grpc/impl/codegen/sync_win32.h",
+    "include/grpc/impl/codegen/sync_windows.h",
     "include/grpc/impl/codegen/time.h",
     "include/grpc++/impl/codegen/config.h",
     "include/grpc++/impl/codegen/config_protobuf.h",
@@ -1098,7 +1098,7 @@
     "include/grpc/impl/codegen/atm.h",
     "include/grpc/impl/codegen/atm_gcc_atomic.h",
     "include/grpc/impl/codegen/atm_gcc_sync.h",
-    "include/grpc/impl/codegen/atm_win32.h",
+    "include/grpc/impl/codegen/atm_windows.h",
     "include/grpc/impl/codegen/log.h",
     "include/grpc/impl/codegen/port_platform.h",
     "include/grpc/impl/codegen/slice.h",
@@ -1106,7 +1106,7 @@
     "include/grpc/impl/codegen/sync.h",
     "include/grpc/impl/codegen/sync_generic.h",
     "include/grpc/impl/codegen/sync_posix.h",
-    "include/grpc/impl/codegen/sync_win32.h",
+    "include/grpc/impl/codegen/sync_windows.h",
     "include/grpc/impl/codegen/time.h",
     "include/grpc++/impl/codegen/config.h",
     "include/grpc++/impl/codegen/config_protobuf.h",
@@ -1204,7 +1204,7 @@
     "src/core/lib/support/cpu_windows.c",
     "src/core/lib/support/env_linux.c",
     "src/core/lib/support/env_posix.c",
-    "src/core/lib/support/env_win32.c",
+    "src/core/lib/support/env_windows.c",
     "src/core/lib/support/histogram.c",
     "src/core/lib/support/host_port.c",
     "src/core/lib/support/load_file.c",
@@ -1212,29 +1212,29 @@
     "src/core/lib/support/log_android.c",
     "src/core/lib/support/log_linux.c",
     "src/core/lib/support/log_posix.c",
-    "src/core/lib/support/log_win32.c",
+    "src/core/lib/support/log_windows.c",
     "src/core/lib/support/murmur_hash.c",
     "src/core/lib/support/slice.c",
     "src/core/lib/support/slice_buffer.c",
     "src/core/lib/support/stack_lockfree.c",
     "src/core/lib/support/string.c",
     "src/core/lib/support/string_posix.c",
-    "src/core/lib/support/string_win32.c",
+    "src/core/lib/support/string_windows.c",
     "src/core/lib/support/subprocess_posix.c",
     "src/core/lib/support/subprocess_windows.c",
     "src/core/lib/support/sync.c",
     "src/core/lib/support/sync_posix.c",
-    "src/core/lib/support/sync_win32.c",
+    "src/core/lib/support/sync_windows.c",
     "src/core/lib/support/thd.c",
     "src/core/lib/support/thd_posix.c",
-    "src/core/lib/support/thd_win32.c",
+    "src/core/lib/support/thd_windows.c",
     "src/core/lib/support/time.c",
     "src/core/lib/support/time_posix.c",
     "src/core/lib/support/time_precise.c",
-    "src/core/lib/support/time_win32.c",
+    "src/core/lib/support/time_windows.c",
     "src/core/lib/support/tls_pthread.c",
     "src/core/lib/support/tmpfile_posix.c",
-    "src/core/lib/support/tmpfile_win32.c",
+    "src/core/lib/support/tmpfile_windows.c",
     "src/core/lib/support/wrap_memcpy.c",
   ],
   hdrs = [
@@ -1242,14 +1242,14 @@
     "include/grpc/support/atm.h",
     "include/grpc/support/atm_gcc_atomic.h",
     "include/grpc/support/atm_gcc_sync.h",
-    "include/grpc/support/atm_win32.h",
+    "include/grpc/support/atm_windows.h",
     "include/grpc/support/avl.h",
     "include/grpc/support/cmdline.h",
     "include/grpc/support/cpu.h",
     "include/grpc/support/histogram.h",
     "include/grpc/support/host_port.h",
     "include/grpc/support/log.h",
-    "include/grpc/support/log_win32.h",
+    "include/grpc/support/log_windows.h",
     "include/grpc/support/port_platform.h",
     "include/grpc/support/slice.h",
     "include/grpc/support/slice_buffer.h",
@@ -1258,7 +1258,7 @@
     "include/grpc/support/sync.h",
     "include/grpc/support/sync_generic.h",
     "include/grpc/support/sync_posix.h",
-    "include/grpc/support/sync_win32.h",
+    "include/grpc/support/sync_windows.h",
     "include/grpc/support/thd.h",
     "include/grpc/support/time.h",
     "include/grpc/support/tls.h",
@@ -1270,7 +1270,7 @@
     "include/grpc/impl/codegen/atm.h",
     "include/grpc/impl/codegen/atm_gcc_atomic.h",
     "include/grpc/impl/codegen/atm_gcc_sync.h",
-    "include/grpc/impl/codegen/atm_win32.h",
+    "include/grpc/impl/codegen/atm_windows.h",
     "include/grpc/impl/codegen/log.h",
     "include/grpc/impl/codegen/port_platform.h",
     "include/grpc/impl/codegen/slice.h",
@@ -1278,7 +1278,7 @@
     "include/grpc/impl/codegen/sync.h",
     "include/grpc/impl/codegen/sync_generic.h",
     "include/grpc/impl/codegen/sync_posix.h",
-    "include/grpc/impl/codegen/sync_win32.h",
+    "include/grpc/impl/codegen/sync_windows.h",
     "include/grpc/impl/codegen/time.h",
     "src/core/lib/profiling/timers.h",
     "src/core/lib/support/backoff.h",
@@ -1288,7 +1288,7 @@
     "src/core/lib/support/murmur_hash.h",
     "src/core/lib/support/stack_lockfree.h",
     "src/core/lib/support/string.h",
-    "src/core/lib/support/string_win32.h",
+    "src/core/lib/support/string_windows.h",
     "src/core/lib/support/thd_internal.h",
     "src/core/lib/support/time_precise.h",
     "src/core/lib/support/tmpfile.h",
@@ -1417,7 +1417,7 @@
     "src/core/lib/security/credentials.c",
     "src/core/lib/security/credentials_metadata.c",
     "src/core/lib/security/credentials_posix.c",
-    "src/core/lib/security/credentials_win32.c",
+    "src/core/lib/security/credentials_windows.c",
     "src/core/lib/security/google_default_credentials.c",
     "src/core/lib/security/handshake.c",
     "src/core/lib/security/json_token.c",
@@ -1485,7 +1485,7 @@
     "include/grpc/impl/codegen/atm.h",
     "include/grpc/impl/codegen/atm_gcc_atomic.h",
     "include/grpc/impl/codegen/atm_gcc_sync.h",
-    "include/grpc/impl/codegen/atm_win32.h",
+    "include/grpc/impl/codegen/atm_windows.h",
     "include/grpc/impl/codegen/log.h",
     "include/grpc/impl/codegen/port_platform.h",
     "include/grpc/impl/codegen/slice.h",
@@ -1493,7 +1493,7 @@
     "include/grpc/impl/codegen/sync.h",
     "include/grpc/impl/codegen/sync_generic.h",
     "include/grpc/impl/codegen/sync_posix.h",
-    "include/grpc/impl/codegen/sync_win32.h",
+    "include/grpc/impl/codegen/sync_windows.h",
     "include/grpc/impl/codegen/time.h",
     "include/grpc/grpc_security.h",
     "include/grpc/grpc_security_constants.h",
@@ -1531,7 +1531,7 @@
     "src/core/lib/iomgr/sockaddr.h",
     "src/core/lib/iomgr/sockaddr_posix.h",
     "src/core/lib/iomgr/sockaddr_utils.h",
-    "src/core/lib/iomgr/sockaddr_win32.h",
+    "src/core/lib/iomgr/sockaddr_windows.h",
     "src/core/lib/iomgr/socket_utils_posix.h",
     "src/core/lib/iomgr/socket_windows.h",
     "src/core/lib/iomgr/tcp_client.h",
diff --git a/Makefile b/Makefile
index 3b7dbd9..91360ad 100644
--- a/Makefile
+++ b/Makefile
@@ -2316,7 +2316,7 @@
     src/core/lib/support/cpu_windows.c \
     src/core/lib/support/env_linux.c \
     src/core/lib/support/env_posix.c \
-    src/core/lib/support/env_win32.c \
+    src/core/lib/support/env_windows.c \
     src/core/lib/support/histogram.c \
     src/core/lib/support/host_port.c \
     src/core/lib/support/load_file.c \
@@ -2324,29 +2324,29 @@
     src/core/lib/support/log_android.c \
     src/core/lib/support/log_linux.c \
     src/core/lib/support/log_posix.c \
-    src/core/lib/support/log_win32.c \
+    src/core/lib/support/log_windows.c \
     src/core/lib/support/murmur_hash.c \
     src/core/lib/support/slice.c \
     src/core/lib/support/slice_buffer.c \
     src/core/lib/support/stack_lockfree.c \
     src/core/lib/support/string.c \
     src/core/lib/support/string_posix.c \
-    src/core/lib/support/string_win32.c \
+    src/core/lib/support/string_windows.c \
     src/core/lib/support/subprocess_posix.c \
     src/core/lib/support/subprocess_windows.c \
     src/core/lib/support/sync.c \
     src/core/lib/support/sync_posix.c \
-    src/core/lib/support/sync_win32.c \
+    src/core/lib/support/sync_windows.c \
     src/core/lib/support/thd.c \
     src/core/lib/support/thd_posix.c \
-    src/core/lib/support/thd_win32.c \
+    src/core/lib/support/thd_windows.c \
     src/core/lib/support/time.c \
     src/core/lib/support/time_posix.c \
     src/core/lib/support/time_precise.c \
-    src/core/lib/support/time_win32.c \
+    src/core/lib/support/time_windows.c \
     src/core/lib/support/tls_pthread.c \
     src/core/lib/support/tmpfile_posix.c \
-    src/core/lib/support/tmpfile_win32.c \
+    src/core/lib/support/tmpfile_windows.c \
     src/core/lib/support/wrap_memcpy.c \
 
 PUBLIC_HEADERS_C += \
@@ -2354,14 +2354,14 @@
     include/grpc/support/atm.h \
     include/grpc/support/atm_gcc_atomic.h \
     include/grpc/support/atm_gcc_sync.h \
-    include/grpc/support/atm_win32.h \
+    include/grpc/support/atm_windows.h \
     include/grpc/support/avl.h \
     include/grpc/support/cmdline.h \
     include/grpc/support/cpu.h \
     include/grpc/support/histogram.h \
     include/grpc/support/host_port.h \
     include/grpc/support/log.h \
-    include/grpc/support/log_win32.h \
+    include/grpc/support/log_windows.h \
     include/grpc/support/port_platform.h \
     include/grpc/support/slice.h \
     include/grpc/support/slice_buffer.h \
@@ -2370,7 +2370,7 @@
     include/grpc/support/sync.h \
     include/grpc/support/sync_generic.h \
     include/grpc/support/sync_posix.h \
-    include/grpc/support/sync_win32.h \
+    include/grpc/support/sync_windows.h \
     include/grpc/support/thd.h \
     include/grpc/support/time.h \
     include/grpc/support/tls.h \
@@ -2382,7 +2382,7 @@
     include/grpc/impl/codegen/atm.h \
     include/grpc/impl/codegen/atm_gcc_atomic.h \
     include/grpc/impl/codegen/atm_gcc_sync.h \
-    include/grpc/impl/codegen/atm_win32.h \
+    include/grpc/impl/codegen/atm_windows.h \
     include/grpc/impl/codegen/log.h \
     include/grpc/impl/codegen/port_platform.h \
     include/grpc/impl/codegen/slice.h \
@@ -2390,7 +2390,7 @@
     include/grpc/impl/codegen/sync.h \
     include/grpc/impl/codegen/sync_generic.h \
     include/grpc/impl/codegen/sync_posix.h \
-    include/grpc/impl/codegen/sync_win32.h \
+    include/grpc/impl/codegen/sync_windows.h \
     include/grpc/impl/codegen/time.h \
 
 LIBGPR_OBJS = $(addprefix $(OBJDIR)/$(CONFIG)/, $(addsuffix .o, $(basename $(LIBGPR_SRC))))
@@ -2567,7 +2567,7 @@
     src/core/lib/security/credentials.c \
     src/core/lib/security/credentials_metadata.c \
     src/core/lib/security/credentials_posix.c \
-    src/core/lib/security/credentials_win32.c \
+    src/core/lib/security/credentials_windows.c \
     src/core/lib/security/google_default_credentials.c \
     src/core/lib/security/handshake.c \
     src/core/lib/security/json_token.c \
@@ -2638,7 +2638,7 @@
     include/grpc/impl/codegen/atm.h \
     include/grpc/impl/codegen/atm_gcc_atomic.h \
     include/grpc/impl/codegen/atm_gcc_sync.h \
-    include/grpc/impl/codegen/atm_win32.h \
+    include/grpc/impl/codegen/atm_windows.h \
     include/grpc/impl/codegen/log.h \
     include/grpc/impl/codegen/port_platform.h \
     include/grpc/impl/codegen/slice.h \
@@ -2646,7 +2646,7 @@
     include/grpc/impl/codegen/sync.h \
     include/grpc/impl/codegen/sync_generic.h \
     include/grpc/impl/codegen/sync_posix.h \
-    include/grpc/impl/codegen/sync_win32.h \
+    include/grpc/impl/codegen/sync_windows.h \
     include/grpc/impl/codegen/time.h \
     include/grpc/grpc_security.h \
     include/grpc/grpc_security_constants.h \
@@ -2958,7 +2958,7 @@
     include/grpc/impl/codegen/atm.h \
     include/grpc/impl/codegen/atm_gcc_atomic.h \
     include/grpc/impl/codegen/atm_gcc_sync.h \
-    include/grpc/impl/codegen/atm_win32.h \
+    include/grpc/impl/codegen/atm_windows.h \
     include/grpc/impl/codegen/log.h \
     include/grpc/impl/codegen/port_platform.h \
     include/grpc/impl/codegen/slice.h \
@@ -2966,7 +2966,7 @@
     include/grpc/impl/codegen/sync.h \
     include/grpc/impl/codegen/sync_generic.h \
     include/grpc/impl/codegen/sync_posix.h \
-    include/grpc/impl/codegen/sync_win32.h \
+    include/grpc/impl/codegen/sync_windows.h \
     include/grpc/impl/codegen/time.h \
     include/grpc/census.h \
 
@@ -3244,7 +3244,7 @@
     include/grpc/impl/codegen/atm.h \
     include/grpc/impl/codegen/atm_gcc_atomic.h \
     include/grpc/impl/codegen/atm_gcc_sync.h \
-    include/grpc/impl/codegen/atm_win32.h \
+    include/grpc/impl/codegen/atm_windows.h \
     include/grpc/impl/codegen/log.h \
     include/grpc/impl/codegen/port_platform.h \
     include/grpc/impl/codegen/slice.h \
@@ -3252,7 +3252,7 @@
     include/grpc/impl/codegen/sync.h \
     include/grpc/impl/codegen/sync_generic.h \
     include/grpc/impl/codegen/sync_posix.h \
-    include/grpc/impl/codegen/sync_win32.h \
+    include/grpc/impl/codegen/sync_windows.h \
     include/grpc/impl/codegen/time.h \
     include/grpc++/impl/codegen/config.h \
     include/grpc++/impl/codegen/config_protobuf.h \
@@ -3547,7 +3547,7 @@
     include/grpc/impl/codegen/atm.h \
     include/grpc/impl/codegen/atm_gcc_atomic.h \
     include/grpc/impl/codegen/atm_gcc_sync.h \
-    include/grpc/impl/codegen/atm_win32.h \
+    include/grpc/impl/codegen/atm_windows.h \
     include/grpc/impl/codegen/log.h \
     include/grpc/impl/codegen/port_platform.h \
     include/grpc/impl/codegen/slice.h \
@@ -3555,7 +3555,7 @@
     include/grpc/impl/codegen/sync.h \
     include/grpc/impl/codegen/sync_generic.h \
     include/grpc/impl/codegen/sync_posix.h \
-    include/grpc/impl/codegen/sync_win32.h \
+    include/grpc/impl/codegen/sync_windows.h \
     include/grpc/impl/codegen/time.h \
     include/grpc++/impl/codegen/config.h \
     include/grpc++/impl/codegen/config_protobuf.h \
@@ -14251,7 +14251,7 @@
 src/core/lib/security/credentials.c: $(OPENSSL_DEP)
 src/core/lib/security/credentials_metadata.c: $(OPENSSL_DEP)
 src/core/lib/security/credentials_posix.c: $(OPENSSL_DEP)
-src/core/lib/security/credentials_win32.c: $(OPENSSL_DEP)
+src/core/lib/security/credentials_windows.c: $(OPENSSL_DEP)
 src/core/lib/security/google_default_credentials.c: $(OPENSSL_DEP)
 src/core/lib/security/handshake.c: $(OPENSSL_DEP)
 src/core/lib/security/json_token.c: $(OPENSSL_DEP)
diff --git a/binding.gyp b/binding.gyp
index 058743e..fa77848 100644
--- a/binding.gyp
+++ b/binding.gyp
@@ -507,7 +507,7 @@
         'src/core/lib/support/cpu_windows.c',
         'src/core/lib/support/env_linux.c',
         'src/core/lib/support/env_posix.c',
-        'src/core/lib/support/env_win32.c',
+        'src/core/lib/support/env_windows.c',
         'src/core/lib/support/histogram.c',
         'src/core/lib/support/host_port.c',
         'src/core/lib/support/load_file.c',
@@ -515,29 +515,29 @@
         'src/core/lib/support/log_android.c',
         'src/core/lib/support/log_linux.c',
         'src/core/lib/support/log_posix.c',
-        'src/core/lib/support/log_win32.c',
+        'src/core/lib/support/log_windows.c',
         'src/core/lib/support/murmur_hash.c',
         'src/core/lib/support/slice.c',
         'src/core/lib/support/slice_buffer.c',
         'src/core/lib/support/stack_lockfree.c',
         'src/core/lib/support/string.c',
         'src/core/lib/support/string_posix.c',
-        'src/core/lib/support/string_win32.c',
+        'src/core/lib/support/string_windows.c',
         'src/core/lib/support/subprocess_posix.c',
         'src/core/lib/support/subprocess_windows.c',
         'src/core/lib/support/sync.c',
         'src/core/lib/support/sync_posix.c',
-        'src/core/lib/support/sync_win32.c',
+        'src/core/lib/support/sync_windows.c',
         'src/core/lib/support/thd.c',
         'src/core/lib/support/thd_posix.c',
-        'src/core/lib/support/thd_win32.c',
+        'src/core/lib/support/thd_windows.c',
         'src/core/lib/support/time.c',
         'src/core/lib/support/time_posix.c',
         'src/core/lib/support/time_precise.c',
-        'src/core/lib/support/time_win32.c',
+        'src/core/lib/support/time_windows.c',
         'src/core/lib/support/tls_pthread.c',
         'src/core/lib/support/tmpfile_posix.c',
-        'src/core/lib/support/tmpfile_win32.c',
+        'src/core/lib/support/tmpfile_windows.c',
         'src/core/lib/support/wrap_memcpy.c',
       ],
       "conditions": [
@@ -672,7 +672,7 @@
         'src/core/lib/security/credentials.c',
         'src/core/lib/security/credentials_metadata.c',
         'src/core/lib/security/credentials_posix.c',
-        'src/core/lib/security/credentials_win32.c',
+        'src/core/lib/security/credentials_windows.c',
         'src/core/lib/security/google_default_credentials.c',
         'src/core/lib/security/handshake.c',
         'src/core/lib/security/json_token.c',
diff --git a/build.yaml b/build.yaml
index 6c00b42..9620416 100644
--- a/build.yaml
+++ b/build.yaml
@@ -38,14 +38,14 @@
   - include/grpc/support/atm.h
   - include/grpc/support/atm_gcc_atomic.h
   - include/grpc/support/atm_gcc_sync.h
-  - include/grpc/support/atm_win32.h
+  - include/grpc/support/atm_windows.h
   - include/grpc/support/avl.h
   - include/grpc/support/cmdline.h
   - include/grpc/support/cpu.h
   - include/grpc/support/histogram.h
   - include/grpc/support/host_port.h
   - include/grpc/support/log.h
-  - include/grpc/support/log_win32.h
+  - include/grpc/support/log_windows.h
   - include/grpc/support/port_platform.h
   - include/grpc/support/slice.h
   - include/grpc/support/slice_buffer.h
@@ -54,7 +54,7 @@
   - include/grpc/support/sync.h
   - include/grpc/support/sync_generic.h
   - include/grpc/support/sync_posix.h
-  - include/grpc/support/sync_win32.h
+  - include/grpc/support/sync_windows.h
   - include/grpc/support/thd.h
   - include/grpc/support/time.h
   - include/grpc/support/tls.h
@@ -71,7 +71,7 @@
   - src/core/lib/support/murmur_hash.h
   - src/core/lib/support/stack_lockfree.h
   - src/core/lib/support/string.h
-  - src/core/lib/support/string_win32.h
+  - src/core/lib/support/string_windows.h
   - src/core/lib/support/thd_internal.h
   - src/core/lib/support/time_precise.h
   - src/core/lib/support/tmpfile.h
@@ -88,7 +88,7 @@
   - src/core/lib/support/cpu_windows.c
   - src/core/lib/support/env_linux.c
   - src/core/lib/support/env_posix.c
-  - src/core/lib/support/env_win32.c
+  - src/core/lib/support/env_windows.c
   - src/core/lib/support/histogram.c
   - src/core/lib/support/host_port.c
   - src/core/lib/support/load_file.c
@@ -96,29 +96,29 @@
   - src/core/lib/support/log_android.c
   - src/core/lib/support/log_linux.c
   - src/core/lib/support/log_posix.c
-  - src/core/lib/support/log_win32.c
+  - src/core/lib/support/log_windows.c
   - src/core/lib/support/murmur_hash.c
   - src/core/lib/support/slice.c
   - src/core/lib/support/slice_buffer.c
   - src/core/lib/support/stack_lockfree.c
   - src/core/lib/support/string.c
   - src/core/lib/support/string_posix.c
-  - src/core/lib/support/string_win32.c
+  - src/core/lib/support/string_windows.c
   - src/core/lib/support/subprocess_posix.c
   - src/core/lib/support/subprocess_windows.c
   - src/core/lib/support/sync.c
   - src/core/lib/support/sync_posix.c
-  - src/core/lib/support/sync_win32.c
+  - src/core/lib/support/sync_windows.c
   - src/core/lib/support/thd.c
   - src/core/lib/support/thd_posix.c
-  - src/core/lib/support/thd_win32.c
+  - src/core/lib/support/thd_windows.c
   - src/core/lib/support/time.c
   - src/core/lib/support/time_posix.c
   - src/core/lib/support/time_precise.c
-  - src/core/lib/support/time_win32.c
+  - src/core/lib/support/time_windows.c
   - src/core/lib/support/tls_pthread.c
   - src/core/lib/support/tmpfile_posix.c
-  - src/core/lib/support/tmpfile_win32.c
+  - src/core/lib/support/tmpfile_windows.c
   - src/core/lib/support/wrap_memcpy.c
   uses:
   - gpr_codegen
@@ -128,7 +128,7 @@
   - include/grpc/impl/codegen/atm.h
   - include/grpc/impl/codegen/atm_gcc_atomic.h
   - include/grpc/impl/codegen/atm_gcc_sync.h
-  - include/grpc/impl/codegen/atm_win32.h
+  - include/grpc/impl/codegen/atm_windows.h
   - include/grpc/impl/codegen/log.h
   - include/grpc/impl/codegen/port_platform.h
   - include/grpc/impl/codegen/slice.h
@@ -136,7 +136,7 @@
   - include/grpc/impl/codegen/sync.h
   - include/grpc/impl/codegen/sync_generic.h
   - include/grpc/impl/codegen/sync_posix.h
-  - include/grpc/impl/codegen/sync_win32.h
+  - include/grpc/impl/codegen/sync_windows.h
   - include/grpc/impl/codegen/time.h
 - name: grpc_base
   public_headers:
@@ -179,7 +179,7 @@
   - src/core/lib/iomgr/sockaddr.h
   - src/core/lib/iomgr/sockaddr_posix.h
   - src/core/lib/iomgr/sockaddr_utils.h
-  - src/core/lib/iomgr/sockaddr_win32.h
+  - src/core/lib/iomgr/sockaddr_windows.h
   - src/core/lib/iomgr/socket_utils_posix.h
   - src/core/lib/iomgr/socket_windows.h
   - src/core/lib/iomgr/tcp_client.h
@@ -416,7 +416,7 @@
   - src/core/lib/security/credentials.c
   - src/core/lib/security/credentials_metadata.c
   - src/core/lib/security/credentials_posix.c
-  - src/core/lib/security/credentials_win32.c
+  - src/core/lib/security/credentials_windows.c
   - src/core/lib/security/google_default_credentials.c
   - src/core/lib/security/handshake.c
   - src/core/lib/security/json_token.c
diff --git a/config.m4 b/config.m4
index 2d930a6..02798a8 100644
--- a/config.m4
+++ b/config.m4
@@ -48,7 +48,7 @@
     src/core/lib/support/cpu_windows.c \
     src/core/lib/support/env_linux.c \
     src/core/lib/support/env_posix.c \
-    src/core/lib/support/env_win32.c \
+    src/core/lib/support/env_windows.c \
     src/core/lib/support/histogram.c \
     src/core/lib/support/host_port.c \
     src/core/lib/support/load_file.c \
@@ -56,29 +56,29 @@
     src/core/lib/support/log_android.c \
     src/core/lib/support/log_linux.c \
     src/core/lib/support/log_posix.c \
-    src/core/lib/support/log_win32.c \
+    src/core/lib/support/log_windows.c \
     src/core/lib/support/murmur_hash.c \
     src/core/lib/support/slice.c \
     src/core/lib/support/slice_buffer.c \
     src/core/lib/support/stack_lockfree.c \
     src/core/lib/support/string.c \
     src/core/lib/support/string_posix.c \
-    src/core/lib/support/string_win32.c \
+    src/core/lib/support/string_windows.c \
     src/core/lib/support/subprocess_posix.c \
     src/core/lib/support/subprocess_windows.c \
     src/core/lib/support/sync.c \
     src/core/lib/support/sync_posix.c \
-    src/core/lib/support/sync_win32.c \
+    src/core/lib/support/sync_windows.c \
     src/core/lib/support/thd.c \
     src/core/lib/support/thd_posix.c \
-    src/core/lib/support/thd_win32.c \
+    src/core/lib/support/thd_windows.c \
     src/core/lib/support/time.c \
     src/core/lib/support/time_posix.c \
     src/core/lib/support/time_precise.c \
-    src/core/lib/support/time_win32.c \
+    src/core/lib/support/time_windows.c \
     src/core/lib/support/tls_pthread.c \
     src/core/lib/support/tmpfile_posix.c \
-    src/core/lib/support/tmpfile_win32.c \
+    src/core/lib/support/tmpfile_windows.c \
     src/core/lib/support/wrap_memcpy.c \
     src/core/lib/surface/init.c \
     src/core/lib/channel/channel_args.c \
@@ -191,7 +191,7 @@
     src/core/lib/security/credentials.c \
     src/core/lib/security/credentials_metadata.c \
     src/core/lib/security/credentials_posix.c \
-    src/core/lib/security/credentials_win32.c \
+    src/core/lib/security/credentials_windows.c \
     src/core/lib/security/google_default_credentials.c \
     src/core/lib/security/handshake.c \
     src/core/lib/security/json_token.c \
diff --git a/gRPC.podspec b/gRPC.podspec
index d66e033..b63112f 100644
--- a/gRPC.podspec
+++ b/gRPC.podspec
@@ -71,7 +71,7 @@
                       'src/core/lib/support/murmur_hash.h',
                       'src/core/lib/support/stack_lockfree.h',
                       'src/core/lib/support/string.h',
-                      'src/core/lib/support/string_win32.h',
+                      'src/core/lib/support/string_windows.h',
                       'src/core/lib/support/thd_internal.h',
                       'src/core/lib/support/time_precise.h',
                       'src/core/lib/support/tmpfile.h',
@@ -79,14 +79,14 @@
                       'include/grpc/support/atm.h',
                       'include/grpc/support/atm_gcc_atomic.h',
                       'include/grpc/support/atm_gcc_sync.h',
-                      'include/grpc/support/atm_win32.h',
+                      'include/grpc/support/atm_windows.h',
                       'include/grpc/support/avl.h',
                       'include/grpc/support/cmdline.h',
                       'include/grpc/support/cpu.h',
                       'include/grpc/support/histogram.h',
                       'include/grpc/support/host_port.h',
                       'include/grpc/support/log.h',
-                      'include/grpc/support/log_win32.h',
+                      'include/grpc/support/log_windows.h',
                       'include/grpc/support/port_platform.h',
                       'include/grpc/support/slice.h',
                       'include/grpc/support/slice_buffer.h',
@@ -95,7 +95,7 @@
                       'include/grpc/support/sync.h',
                       'include/grpc/support/sync_generic.h',
                       'include/grpc/support/sync_posix.h',
-                      'include/grpc/support/sync_win32.h',
+                      'include/grpc/support/sync_windows.h',
                       'include/grpc/support/thd.h',
                       'include/grpc/support/time.h',
                       'include/grpc/support/tls.h',
@@ -107,7 +107,7 @@
                       'include/grpc/impl/codegen/atm.h',
                       'include/grpc/impl/codegen/atm_gcc_atomic.h',
                       'include/grpc/impl/codegen/atm_gcc_sync.h',
-                      'include/grpc/impl/codegen/atm_win32.h',
+                      'include/grpc/impl/codegen/atm_windows.h',
                       'include/grpc/impl/codegen/log.h',
                       'include/grpc/impl/codegen/port_platform.h',
                       'include/grpc/impl/codegen/slice.h',
@@ -115,7 +115,7 @@
                       'include/grpc/impl/codegen/sync.h',
                       'include/grpc/impl/codegen/sync_generic.h',
                       'include/grpc/impl/codegen/sync_posix.h',
-                      'include/grpc/impl/codegen/sync_win32.h',
+                      'include/grpc/impl/codegen/sync_windows.h',
                       'include/grpc/impl/codegen/time.h',
                       'src/core/lib/profiling/basic_timers.c',
                       'src/core/lib/profiling/stap_timers.c',
@@ -129,7 +129,7 @@
                       'src/core/lib/support/cpu_windows.c',
                       'src/core/lib/support/env_linux.c',
                       'src/core/lib/support/env_posix.c',
-                      'src/core/lib/support/env_win32.c',
+                      'src/core/lib/support/env_windows.c',
                       'src/core/lib/support/histogram.c',
                       'src/core/lib/support/host_port.c',
                       'src/core/lib/support/load_file.c',
@@ -137,29 +137,29 @@
                       'src/core/lib/support/log_android.c',
                       'src/core/lib/support/log_linux.c',
                       'src/core/lib/support/log_posix.c',
-                      'src/core/lib/support/log_win32.c',
+                      'src/core/lib/support/log_windows.c',
                       'src/core/lib/support/murmur_hash.c',
                       'src/core/lib/support/slice.c',
                       'src/core/lib/support/slice_buffer.c',
                       'src/core/lib/support/stack_lockfree.c',
                       'src/core/lib/support/string.c',
                       'src/core/lib/support/string_posix.c',
-                      'src/core/lib/support/string_win32.c',
+                      'src/core/lib/support/string_windows.c',
                       'src/core/lib/support/subprocess_posix.c',
                       'src/core/lib/support/subprocess_windows.c',
                       'src/core/lib/support/sync.c',
                       'src/core/lib/support/sync_posix.c',
-                      'src/core/lib/support/sync_win32.c',
+                      'src/core/lib/support/sync_windows.c',
                       'src/core/lib/support/thd.c',
                       'src/core/lib/support/thd_posix.c',
-                      'src/core/lib/support/thd_win32.c',
+                      'src/core/lib/support/thd_windows.c',
                       'src/core/lib/support/time.c',
                       'src/core/lib/support/time_posix.c',
                       'src/core/lib/support/time_precise.c',
-                      'src/core/lib/support/time_win32.c',
+                      'src/core/lib/support/time_windows.c',
                       'src/core/lib/support/tls_pthread.c',
                       'src/core/lib/support/tmpfile_posix.c',
-                      'src/core/lib/support/tmpfile_win32.c',
+                      'src/core/lib/support/tmpfile_windows.c',
                       'src/core/lib/support/wrap_memcpy.c',
                       'src/core/lib/channel/channel_args.h',
                       'src/core/lib/channel/channel_stack.h',
@@ -194,7 +194,7 @@
                       'src/core/lib/iomgr/sockaddr.h',
                       'src/core/lib/iomgr/sockaddr_posix.h',
                       'src/core/lib/iomgr/sockaddr_utils.h',
-                      'src/core/lib/iomgr/sockaddr_win32.h',
+                      'src/core/lib/iomgr/sockaddr_windows.h',
                       'src/core/lib/iomgr/socket_utils_posix.h',
                       'src/core/lib/iomgr/socket_windows.h',
                       'src/core/lib/iomgr/tcp_client.h',
@@ -312,7 +312,7 @@
                       'include/grpc/impl/codegen/atm.h',
                       'include/grpc/impl/codegen/atm_gcc_atomic.h',
                       'include/grpc/impl/codegen/atm_gcc_sync.h',
-                      'include/grpc/impl/codegen/atm_win32.h',
+                      'include/grpc/impl/codegen/atm_windows.h',
                       'include/grpc/impl/codegen/log.h',
                       'include/grpc/impl/codegen/port_platform.h',
                       'include/grpc/impl/codegen/slice.h',
@@ -320,7 +320,7 @@
                       'include/grpc/impl/codegen/sync.h',
                       'include/grpc/impl/codegen/sync_generic.h',
                       'include/grpc/impl/codegen/sync_posix.h',
-                      'include/grpc/impl/codegen/sync_win32.h',
+                      'include/grpc/impl/codegen/sync_windows.h',
                       'include/grpc/impl/codegen/time.h',
                       'include/grpc/grpc_security.h',
                       'include/grpc/grpc_security_constants.h',
@@ -436,7 +436,7 @@
                       'src/core/lib/security/credentials.c',
                       'src/core/lib/security/credentials_metadata.c',
                       'src/core/lib/security/credentials_posix.c',
-                      'src/core/lib/security/credentials_win32.c',
+                      'src/core/lib/security/credentials_windows.c',
                       'src/core/lib/security/google_default_credentials.c',
                       'src/core/lib/security/handshake.c',
                       'src/core/lib/security/json_token.c',
@@ -499,7 +499,7 @@
                               'src/core/lib/support/murmur_hash.h',
                               'src/core/lib/support/stack_lockfree.h',
                               'src/core/lib/support/string.h',
-                              'src/core/lib/support/string_win32.h',
+                              'src/core/lib/support/string_windows.h',
                               'src/core/lib/support/thd_internal.h',
                               'src/core/lib/support/time_precise.h',
                               'src/core/lib/support/tmpfile.h',
@@ -536,7 +536,7 @@
                               'src/core/lib/iomgr/sockaddr.h',
                               'src/core/lib/iomgr/sockaddr_posix.h',
                               'src/core/lib/iomgr/sockaddr_utils.h',
-                              'src/core/lib/iomgr/sockaddr_win32.h',
+                              'src/core/lib/iomgr/sockaddr_windows.h',
                               'src/core/lib/iomgr/socket_utils_posix.h',
                               'src/core/lib/iomgr/socket_windows.h',
                               'src/core/lib/iomgr/tcp_client.h',
diff --git a/grpc.gemspec b/grpc.gemspec
index a9f0f68..ddc828b 100755
--- a/grpc.gemspec
+++ b/grpc.gemspec
@@ -47,14 +47,14 @@
   s.files += %w( include/grpc/support/atm.h )
   s.files += %w( include/grpc/support/atm_gcc_atomic.h )
   s.files += %w( include/grpc/support/atm_gcc_sync.h )
-  s.files += %w( include/grpc/support/atm_win32.h )
+  s.files += %w( include/grpc/support/atm_windows.h )
   s.files += %w( include/grpc/support/avl.h )
   s.files += %w( include/grpc/support/cmdline.h )
   s.files += %w( include/grpc/support/cpu.h )
   s.files += %w( include/grpc/support/histogram.h )
   s.files += %w( include/grpc/support/host_port.h )
   s.files += %w( include/grpc/support/log.h )
-  s.files += %w( include/grpc/support/log_win32.h )
+  s.files += %w( include/grpc/support/log_windows.h )
   s.files += %w( include/grpc/support/port_platform.h )
   s.files += %w( include/grpc/support/slice.h )
   s.files += %w( include/grpc/support/slice_buffer.h )
@@ -63,7 +63,7 @@
   s.files += %w( include/grpc/support/sync.h )
   s.files += %w( include/grpc/support/sync_generic.h )
   s.files += %w( include/grpc/support/sync_posix.h )
-  s.files += %w( include/grpc/support/sync_win32.h )
+  s.files += %w( include/grpc/support/sync_windows.h )
   s.files += %w( include/grpc/support/thd.h )
   s.files += %w( include/grpc/support/time.h )
   s.files += %w( include/grpc/support/tls.h )
@@ -75,7 +75,7 @@
   s.files += %w( include/grpc/impl/codegen/atm.h )
   s.files += %w( include/grpc/impl/codegen/atm_gcc_atomic.h )
   s.files += %w( include/grpc/impl/codegen/atm_gcc_sync.h )
-  s.files += %w( include/grpc/impl/codegen/atm_win32.h )
+  s.files += %w( include/grpc/impl/codegen/atm_windows.h )
   s.files += %w( include/grpc/impl/codegen/log.h )
   s.files += %w( include/grpc/impl/codegen/port_platform.h )
   s.files += %w( include/grpc/impl/codegen/slice.h )
@@ -83,7 +83,7 @@
   s.files += %w( include/grpc/impl/codegen/sync.h )
   s.files += %w( include/grpc/impl/codegen/sync_generic.h )
   s.files += %w( include/grpc/impl/codegen/sync_posix.h )
-  s.files += %w( include/grpc/impl/codegen/sync_win32.h )
+  s.files += %w( include/grpc/impl/codegen/sync_windows.h )
   s.files += %w( include/grpc/impl/codegen/time.h )
   s.files += %w( src/core/lib/profiling/timers.h )
   s.files += %w( src/core/lib/support/backoff.h )
@@ -93,7 +93,7 @@
   s.files += %w( src/core/lib/support/murmur_hash.h )
   s.files += %w( src/core/lib/support/stack_lockfree.h )
   s.files += %w( src/core/lib/support/string.h )
-  s.files += %w( src/core/lib/support/string_win32.h )
+  s.files += %w( src/core/lib/support/string_windows.h )
   s.files += %w( src/core/lib/support/thd_internal.h )
   s.files += %w( src/core/lib/support/time_precise.h )
   s.files += %w( src/core/lib/support/tmpfile.h )
@@ -109,7 +109,7 @@
   s.files += %w( src/core/lib/support/cpu_windows.c )
   s.files += %w( src/core/lib/support/env_linux.c )
   s.files += %w( src/core/lib/support/env_posix.c )
-  s.files += %w( src/core/lib/support/env_win32.c )
+  s.files += %w( src/core/lib/support/env_windows.c )
   s.files += %w( src/core/lib/support/histogram.c )
   s.files += %w( src/core/lib/support/host_port.c )
   s.files += %w( src/core/lib/support/load_file.c )
@@ -117,29 +117,29 @@
   s.files += %w( src/core/lib/support/log_android.c )
   s.files += %w( src/core/lib/support/log_linux.c )
   s.files += %w( src/core/lib/support/log_posix.c )
-  s.files += %w( src/core/lib/support/log_win32.c )
+  s.files += %w( src/core/lib/support/log_windows.c )
   s.files += %w( src/core/lib/support/murmur_hash.c )
   s.files += %w( src/core/lib/support/slice.c )
   s.files += %w( src/core/lib/support/slice_buffer.c )
   s.files += %w( src/core/lib/support/stack_lockfree.c )
   s.files += %w( src/core/lib/support/string.c )
   s.files += %w( src/core/lib/support/string_posix.c )
-  s.files += %w( src/core/lib/support/string_win32.c )
+  s.files += %w( src/core/lib/support/string_windows.c )
   s.files += %w( src/core/lib/support/subprocess_posix.c )
   s.files += %w( src/core/lib/support/subprocess_windows.c )
   s.files += %w( src/core/lib/support/sync.c )
   s.files += %w( src/core/lib/support/sync_posix.c )
-  s.files += %w( src/core/lib/support/sync_win32.c )
+  s.files += %w( src/core/lib/support/sync_windows.c )
   s.files += %w( src/core/lib/support/thd.c )
   s.files += %w( src/core/lib/support/thd_posix.c )
-  s.files += %w( src/core/lib/support/thd_win32.c )
+  s.files += %w( src/core/lib/support/thd_windows.c )
   s.files += %w( src/core/lib/support/time.c )
   s.files += %w( src/core/lib/support/time_posix.c )
   s.files += %w( src/core/lib/support/time_precise.c )
-  s.files += %w( src/core/lib/support/time_win32.c )
+  s.files += %w( src/core/lib/support/time_windows.c )
   s.files += %w( src/core/lib/support/tls_pthread.c )
   s.files += %w( src/core/lib/support/tmpfile_posix.c )
-  s.files += %w( src/core/lib/support/tmpfile_win32.c )
+  s.files += %w( src/core/lib/support/tmpfile_windows.c )
   s.files += %w( src/core/lib/support/wrap_memcpy.c )
   s.files += %w( include/grpc/byte_buffer.h )
   s.files += %w( include/grpc/byte_buffer_reader.h )
@@ -156,7 +156,7 @@
   s.files += %w( include/grpc/impl/codegen/atm.h )
   s.files += %w( include/grpc/impl/codegen/atm_gcc_atomic.h )
   s.files += %w( include/grpc/impl/codegen/atm_gcc_sync.h )
-  s.files += %w( include/grpc/impl/codegen/atm_win32.h )
+  s.files += %w( include/grpc/impl/codegen/atm_windows.h )
   s.files += %w( include/grpc/impl/codegen/log.h )
   s.files += %w( include/grpc/impl/codegen/port_platform.h )
   s.files += %w( include/grpc/impl/codegen/slice.h )
@@ -164,7 +164,7 @@
   s.files += %w( include/grpc/impl/codegen/sync.h )
   s.files += %w( include/grpc/impl/codegen/sync_generic.h )
   s.files += %w( include/grpc/impl/codegen/sync_posix.h )
-  s.files += %w( include/grpc/impl/codegen/sync_win32.h )
+  s.files += %w( include/grpc/impl/codegen/sync_windows.h )
   s.files += %w( include/grpc/impl/codegen/time.h )
   s.files += %w( include/grpc/grpc_security.h )
   s.files += %w( include/grpc/grpc_security_constants.h )
@@ -202,7 +202,7 @@
   s.files += %w( src/core/lib/iomgr/sockaddr.h )
   s.files += %w( src/core/lib/iomgr/sockaddr_posix.h )
   s.files += %w( src/core/lib/iomgr/sockaddr_utils.h )
-  s.files += %w( src/core/lib/iomgr/sockaddr_win32.h )
+  s.files += %w( src/core/lib/iomgr/sockaddr_windows.h )
   s.files += %w( src/core/lib/iomgr/socket_utils_posix.h )
   s.files += %w( src/core/lib/iomgr/socket_windows.h )
   s.files += %w( src/core/lib/iomgr/tcp_client.h )
@@ -416,7 +416,7 @@
   s.files += %w( src/core/lib/security/credentials.c )
   s.files += %w( src/core/lib/security/credentials_metadata.c )
   s.files += %w( src/core/lib/security/credentials_posix.c )
-  s.files += %w( src/core/lib/security/credentials_win32.c )
+  s.files += %w( src/core/lib/security/credentials_windows.c )
   s.files += %w( src/core/lib/security/google_default_credentials.c )
   s.files += %w( src/core/lib/security/handshake.c )
   s.files += %w( src/core/lib/security/json_token.c )
diff --git a/include/grpc/impl/codegen/atm.h b/include/grpc/impl/codegen/atm.h
index 5376026..5589d5d 100644
--- a/include/grpc/impl/codegen/atm.h
+++ b/include/grpc/impl/codegen/atm.h
@@ -83,8 +83,8 @@
 #include <grpc/impl/codegen/atm_gcc_atomic.h>
 #elif defined(GPR_GCC_SYNC)
 #include <grpc/impl/codegen/atm_gcc_sync.h>
-#elif defined(GPR_WIN32_ATOMIC)
-#include <grpc/impl/codegen/atm_win32.h>
+#elif defined(GPR_WINDOWS_ATOMIC)
+#include <grpc/impl/codegen/atm_windows.h>
 #else
 #error could not determine platform for atm
 #endif
diff --git a/include/grpc/impl/codegen/atm_win32.h b/include/grpc/impl/codegen/atm_windows.h
similarity index 96%
rename from include/grpc/impl/codegen/atm_win32.h
rename to include/grpc/impl/codegen/atm_windows.h
index 7c1ccaf..d5fa8c0 100644
--- a/include/grpc/impl/codegen/atm_win32.h
+++ b/include/grpc/impl/codegen/atm_windows.h
@@ -31,8 +31,8 @@
  *
  */
 
-#ifndef GRPC_IMPL_CODEGEN_ATM_WIN32_H
-#define GRPC_IMPL_CODEGEN_ATM_WIN32_H
+#ifndef GRPC_IMPL_CODEGEN_ATM_WINDOWS_H
+#define GRPC_IMPL_CODEGEN_ATM_WINDOWS_H
 
 /* Win32 variant of atm_platform.h */
 #include <grpc/impl/codegen/port_platform.h>
@@ -122,4 +122,4 @@
   return old;
 }
 
-#endif /* GRPC_IMPL_CODEGEN_ATM_WIN32_H */
+#endif /* GRPC_IMPL_CODEGEN_ATM_WINDOWS_H */
diff --git a/include/grpc/impl/codegen/port_platform.h b/include/grpc/impl/codegen/port_platform.h
index 3242f07..b21a112 100644
--- a/include/grpc/impl/codegen/port_platform.h
+++ b/include/grpc/impl/codegen/port_platform.h
@@ -84,7 +84,7 @@
 #if !defined(GPR_NO_AUTODETECT_PLATFORM)
 #if defined(_WIN64) || defined(WIN64)
 #define GPR_PLATFORM_STRING "windows"
-#define GPR_WIN32 1
+#define GPR_WINDOWS 1
 #define GPR_ARCH_64 1
 #define GPR_GETPID_IN_PROCESS_H 1
 #define GPR_WINSOCK_SOCKET 1
@@ -93,14 +93,14 @@
 #define GPR_GCC_ATOMIC 1
 #define GPR_GCC_TLS 1
 #else
-#define GPR_WIN32_ATOMIC 1
+#define GPR_WINDOWS_ATOMIC 1
 #define GPR_MSVC_TLS 1
 #endif
 #define GPR_WINDOWS_CRASH_HANDLER 1
 #elif defined(_WIN32) || defined(WIN32)
 #define GPR_PLATFORM_STRING "windows"
 #define GPR_ARCH_32 1
-#define GPR_WIN32 1
+#define GPR_WINDOWS 1
 #define GPR_GETPID_IN_PROCESS_H 1
 #define GPR_WINSOCK_SOCKET 1
 #define GPR_WINDOWS_SUBPROCESS 1
@@ -108,7 +108,7 @@
 #define GPR_GCC_ATOMIC 1
 #define GPR_GCC_TLS 1
 #else
-#define GPR_WIN32_ATOMIC 1
+#define GPR_WINDOWS_ATOMIC 1
 #define GPR_MSVC_TLS 1
 #endif
 #define GPR_WINDOWS_CRASH_HANDLER 1
@@ -345,19 +345,19 @@
 
 /* Validate platform combinations */
 #if defined(GPR_GCC_ATOMIC) + defined(GPR_GCC_SYNC) + \
-        defined(GPR_WIN32_ATOMIC) !=                  \
+        defined(GPR_WINDOWS_ATOMIC) !=                  \
     1
-#error Must define exactly one of GPR_GCC_ATOMIC, GPR_GCC_SYNC, GPR_WIN32_ATOMIC
+#error Must define exactly one of GPR_GCC_ATOMIC, GPR_GCC_SYNC, GPR_WINDOWS_ATOMIC
 #endif
 
 #if defined(GPR_ARCH_32) + defined(GPR_ARCH_64) != 1
 #error Must define exactly one of GPR_ARCH_32, GPR_ARCH_64
 #endif
 
-#if defined(GPR_CPU_LINUX) + defined(GPR_CPU_POSIX) + defined(GPR_WIN32) + \
+#if defined(GPR_CPU_LINUX) + defined(GPR_CPU_POSIX) + defined(GPR_WINDOWS) + \
         defined(GPR_CPU_IPHONE) + defined(GPR_CPU_CUSTOM) !=               \
     1
-#error Must define exactly one of GPR_CPU_LINUX, GPR_CPU_POSIX, GPR_WIN32, GPR_CPU_IPHONE, GPR_CPU_CUSTOM
+#error Must define exactly one of GPR_CPU_LINUX, GPR_CPU_POSIX, GPR_WINDOWS, GPR_CPU_IPHONE, GPR_CPU_CUSTOM
 #endif
 
 #if defined(GPR_POSIX_MULTIPOLL_WITH_POLL) && !defined(GPR_POSIX_SOCKET)
diff --git a/include/grpc/impl/codegen/sync.h b/include/grpc/impl/codegen/sync.h
index 6fd7d64..5542482 100644
--- a/include/grpc/impl/codegen/sync.h
+++ b/include/grpc/impl/codegen/sync.h
@@ -58,8 +58,8 @@
 
 #if defined(GPR_POSIX_SYNC)
 #include <grpc/impl/codegen/sync_posix.h>
-#elif defined(GPR_WIN32)
-#include <grpc/impl/codegen/sync_win32.h>
+#elif defined(GPR_WINDOWS)
+#include <grpc/impl/codegen/sync_windows.h>
 #elif !defined(GPR_CUSTOM_SYNC)
 #error Unable to determine platform for sync
 #endif
diff --git a/include/grpc/impl/codegen/sync_win32.h b/include/grpc/impl/codegen/sync_windows.h
similarity index 93%
rename from include/grpc/impl/codegen/sync_win32.h
rename to include/grpc/impl/codegen/sync_windows.h
index bdc43dd..aa4e515 100644
--- a/include/grpc/impl/codegen/sync_win32.h
+++ b/include/grpc/impl/codegen/sync_windows.h
@@ -31,8 +31,8 @@
  *
  */
 
-#ifndef GRPC_IMPL_CODEGEN_SYNC_WIN32_H
-#define GRPC_IMPL_CODEGEN_SYNC_WIN32_H
+#ifndef GRPC_IMPL_CODEGEN_SYNC_WINDOWS_H
+#define GRPC_IMPL_CODEGEN_SYNC_WINDOWS_H
 
 #include <grpc/impl/codegen/sync_generic.h>
 
@@ -46,4 +46,4 @@
 typedef INIT_ONCE gpr_once;
 #define GPR_ONCE_INIT INIT_ONCE_STATIC_INIT
 
-#endif /* GRPC_IMPL_CODEGEN_SYNC_WIN32_H */
+#endif /* GRPC_IMPL_CODEGEN_SYNC_WINDOWS_H */
diff --git a/include/grpc/support/atm_win32.h b/include/grpc/support/atm_windows.h
similarity index 90%
copy from include/grpc/support/atm_win32.h
copy to include/grpc/support/atm_windows.h
index 13526d9..6aec5b7 100644
--- a/include/grpc/support/atm_win32.h
+++ b/include/grpc/support/atm_windows.h
@@ -31,9 +31,9 @@
  *
  */
 
-#ifndef GRPC_SUPPORT_ATM_WIN32_H
-#define GRPC_SUPPORT_ATM_WIN32_H
+#ifndef GRPC_SUPPORT_ATM_WINDOWS_H
+#define GRPC_SUPPORT_ATM_WINDOWS_H
 
-#include <grpc/impl/codegen/atm_win32.h>
+#include <grpc/impl/codegen/atm_windows.h>
 
-#endif /* GRPC_SUPPORT_ATM_WIN32_H */
+#endif /* GRPC_SUPPORT_ATM_WINDOWS_H */
diff --git a/include/grpc/support/log_win32.h b/include/grpc/support/log_windows.h
similarity index 94%
rename from include/grpc/support/log_win32.h
rename to include/grpc/support/log_windows.h
index e5c25e0..12bf8cc 100644
--- a/include/grpc/support/log_win32.h
+++ b/include/grpc/support/log_windows.h
@@ -31,8 +31,8 @@
  *
  */
 
-#ifndef GRPC_SUPPORT_LOG_WIN32_H
-#define GRPC_SUPPORT_LOG_WIN32_H
+#ifndef GRPC_SUPPORT_LOG_WINDOWS_H
+#define GRPC_SUPPORT_LOG_WINDOWS_H
 
 #ifdef __cplusplus
 extern "C" {
@@ -48,4 +48,4 @@
 }
 #endif
 
-#endif /* GRPC_SUPPORT_LOG_WIN32_H */
+#endif /* GRPC_SUPPORT_LOG_WINDOWS_H */
diff --git a/include/grpc/support/sync_win32.h b/include/grpc/support/sync_win32.h
deleted file mode 100644
index 5631c52..0000000
--- a/include/grpc/support/sync_win32.h
+++ /dev/null
@@ -1,39 +0,0 @@
-/*
- *
- * Copyright 2015, Google Inc.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are
- * met:
- *
- *     * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *     * Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following disclaimer
- * in the documentation and/or other materials provided with the
- * distribution.
- *     * Neither the name of Google Inc. nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- */
-
-#ifndef GRPC_SUPPORT_SYNC_WIN32_H
-#define GRPC_SUPPORT_SYNC_WIN32_H
-
-#include <grpc/impl/codegen/sync_win32.h>
-
-#endif /* GRPC_SUPPORT_SYNC_WIN32_H */
diff --git a/include/grpc/support/atm_win32.h b/include/grpc/support/sync_windows.h
similarity index 90%
rename from include/grpc/support/atm_win32.h
rename to include/grpc/support/sync_windows.h
index 13526d9..0624e0c 100644
--- a/include/grpc/support/atm_win32.h
+++ b/include/grpc/support/sync_windows.h
@@ -31,9 +31,9 @@
  *
  */
 
-#ifndef GRPC_SUPPORT_ATM_WIN32_H
-#define GRPC_SUPPORT_ATM_WIN32_H
+#ifndef GRPC_SUPPORT_SYNC_WINDOWS_H
+#define GRPC_SUPPORT_SYNC_WINDOWS_H
 
-#include <grpc/impl/codegen/atm_win32.h>
+#include <grpc/impl/codegen/sync_windows.h>
 
-#endif /* GRPC_SUPPORT_ATM_WIN32_H */
+#endif /* GRPC_SUPPORT_SYNC_WINDOWS_H */
diff --git a/package.xml b/package.xml
index 3ae810d..ec54030 100644
--- a/package.xml
+++ b/package.xml
@@ -54,14 +54,14 @@
     <file baseinstalldir="/" name="include/grpc/support/atm.h" role="src" />
     <file baseinstalldir="/" name="include/grpc/support/atm_gcc_atomic.h" role="src" />
     <file baseinstalldir="/" name="include/grpc/support/atm_gcc_sync.h" role="src" />
-    <file baseinstalldir="/" name="include/grpc/support/atm_win32.h" role="src" />
+    <file baseinstalldir="/" name="include/grpc/support/atm_windows.h" role="src" />
     <file baseinstalldir="/" name="include/grpc/support/avl.h" role="src" />
     <file baseinstalldir="/" name="include/grpc/support/cmdline.h" role="src" />
     <file baseinstalldir="/" name="include/grpc/support/cpu.h" role="src" />
     <file baseinstalldir="/" name="include/grpc/support/histogram.h" role="src" />
     <file baseinstalldir="/" name="include/grpc/support/host_port.h" role="src" />
     <file baseinstalldir="/" name="include/grpc/support/log.h" role="src" />
-    <file baseinstalldir="/" name="include/grpc/support/log_win32.h" role="src" />
+    <file baseinstalldir="/" name="include/grpc/support/log_windows.h" role="src" />
     <file baseinstalldir="/" name="include/grpc/support/port_platform.h" role="src" />
     <file baseinstalldir="/" name="include/grpc/support/slice.h" role="src" />
     <file baseinstalldir="/" name="include/grpc/support/slice_buffer.h" role="src" />
@@ -70,7 +70,7 @@
     <file baseinstalldir="/" name="include/grpc/support/sync.h" role="src" />
     <file baseinstalldir="/" name="include/grpc/support/sync_generic.h" role="src" />
     <file baseinstalldir="/" name="include/grpc/support/sync_posix.h" role="src" />
-    <file baseinstalldir="/" name="include/grpc/support/sync_win32.h" role="src" />
+    <file baseinstalldir="/" name="include/grpc/support/sync_windows.h" role="src" />
     <file baseinstalldir="/" name="include/grpc/support/thd.h" role="src" />
     <file baseinstalldir="/" name="include/grpc/support/time.h" role="src" />
     <file baseinstalldir="/" name="include/grpc/support/tls.h" role="src" />
@@ -82,7 +82,7 @@
     <file baseinstalldir="/" name="include/grpc/impl/codegen/atm.h" role="src" />
     <file baseinstalldir="/" name="include/grpc/impl/codegen/atm_gcc_atomic.h" role="src" />
     <file baseinstalldir="/" name="include/grpc/impl/codegen/atm_gcc_sync.h" role="src" />
-    <file baseinstalldir="/" name="include/grpc/impl/codegen/atm_win32.h" role="src" />
+    <file baseinstalldir="/" name="include/grpc/impl/codegen/atm_windows.h" role="src" />
     <file baseinstalldir="/" name="include/grpc/impl/codegen/log.h" role="src" />
     <file baseinstalldir="/" name="include/grpc/impl/codegen/port_platform.h" role="src" />
     <file baseinstalldir="/" name="include/grpc/impl/codegen/slice.h" role="src" />
@@ -90,7 +90,7 @@
     <file baseinstalldir="/" name="include/grpc/impl/codegen/sync.h" role="src" />
     <file baseinstalldir="/" name="include/grpc/impl/codegen/sync_generic.h" role="src" />
     <file baseinstalldir="/" name="include/grpc/impl/codegen/sync_posix.h" role="src" />
-    <file baseinstalldir="/" name="include/grpc/impl/codegen/sync_win32.h" role="src" />
+    <file baseinstalldir="/" name="include/grpc/impl/codegen/sync_windows.h" role="src" />
     <file baseinstalldir="/" name="include/grpc/impl/codegen/time.h" role="src" />
     <file baseinstalldir="/" name="src/core/lib/profiling/timers.h" role="src" />
     <file baseinstalldir="/" name="src/core/lib/support/backoff.h" role="src" />
@@ -100,7 +100,7 @@
     <file baseinstalldir="/" name="src/core/lib/support/murmur_hash.h" role="src" />
     <file baseinstalldir="/" name="src/core/lib/support/stack_lockfree.h" role="src" />
     <file baseinstalldir="/" name="src/core/lib/support/string.h" role="src" />
-    <file baseinstalldir="/" name="src/core/lib/support/string_win32.h" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/support/string_windows.h" role="src" />
     <file baseinstalldir="/" name="src/core/lib/support/thd_internal.h" role="src" />
     <file baseinstalldir="/" name="src/core/lib/support/time_precise.h" role="src" />
     <file baseinstalldir="/" name="src/core/lib/support/tmpfile.h" role="src" />
@@ -116,7 +116,7 @@
     <file baseinstalldir="/" name="src/core/lib/support/cpu_windows.c" role="src" />
     <file baseinstalldir="/" name="src/core/lib/support/env_linux.c" role="src" />
     <file baseinstalldir="/" name="src/core/lib/support/env_posix.c" role="src" />
-    <file baseinstalldir="/" name="src/core/lib/support/env_win32.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/support/env_windows.c" role="src" />
     <file baseinstalldir="/" name="src/core/lib/support/histogram.c" role="src" />
     <file baseinstalldir="/" name="src/core/lib/support/host_port.c" role="src" />
     <file baseinstalldir="/" name="src/core/lib/support/load_file.c" role="src" />
@@ -124,29 +124,29 @@
     <file baseinstalldir="/" name="src/core/lib/support/log_android.c" role="src" />
     <file baseinstalldir="/" name="src/core/lib/support/log_linux.c" role="src" />
     <file baseinstalldir="/" name="src/core/lib/support/log_posix.c" role="src" />
-    <file baseinstalldir="/" name="src/core/lib/support/log_win32.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/support/log_windows.c" role="src" />
     <file baseinstalldir="/" name="src/core/lib/support/murmur_hash.c" role="src" />
     <file baseinstalldir="/" name="src/core/lib/support/slice.c" role="src" />
     <file baseinstalldir="/" name="src/core/lib/support/slice_buffer.c" role="src" />
     <file baseinstalldir="/" name="src/core/lib/support/stack_lockfree.c" role="src" />
     <file baseinstalldir="/" name="src/core/lib/support/string.c" role="src" />
     <file baseinstalldir="/" name="src/core/lib/support/string_posix.c" role="src" />
-    <file baseinstalldir="/" name="src/core/lib/support/string_win32.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/support/string_windows.c" role="src" />
     <file baseinstalldir="/" name="src/core/lib/support/subprocess_posix.c" role="src" />
     <file baseinstalldir="/" name="src/core/lib/support/subprocess_windows.c" role="src" />
     <file baseinstalldir="/" name="src/core/lib/support/sync.c" role="src" />
     <file baseinstalldir="/" name="src/core/lib/support/sync_posix.c" role="src" />
-    <file baseinstalldir="/" name="src/core/lib/support/sync_win32.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/support/sync_windows.c" role="src" />
     <file baseinstalldir="/" name="src/core/lib/support/thd.c" role="src" />
     <file baseinstalldir="/" name="src/core/lib/support/thd_posix.c" role="src" />
-    <file baseinstalldir="/" name="src/core/lib/support/thd_win32.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/support/thd_windows.c" role="src" />
     <file baseinstalldir="/" name="src/core/lib/support/time.c" role="src" />
     <file baseinstalldir="/" name="src/core/lib/support/time_posix.c" role="src" />
     <file baseinstalldir="/" name="src/core/lib/support/time_precise.c" role="src" />
-    <file baseinstalldir="/" name="src/core/lib/support/time_win32.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/support/time_windows.c" role="src" />
     <file baseinstalldir="/" name="src/core/lib/support/tls_pthread.c" role="src" />
     <file baseinstalldir="/" name="src/core/lib/support/tmpfile_posix.c" role="src" />
-    <file baseinstalldir="/" name="src/core/lib/support/tmpfile_win32.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/support/tmpfile_windows.c" role="src" />
     <file baseinstalldir="/" name="src/core/lib/support/wrap_memcpy.c" role="src" />
     <file baseinstalldir="/" name="include/grpc/byte_buffer.h" role="src" />
     <file baseinstalldir="/" name="include/grpc/byte_buffer_reader.h" role="src" />
@@ -163,7 +163,7 @@
     <file baseinstalldir="/" name="include/grpc/impl/codegen/atm.h" role="src" />
     <file baseinstalldir="/" name="include/grpc/impl/codegen/atm_gcc_atomic.h" role="src" />
     <file baseinstalldir="/" name="include/grpc/impl/codegen/atm_gcc_sync.h" role="src" />
-    <file baseinstalldir="/" name="include/grpc/impl/codegen/atm_win32.h" role="src" />
+    <file baseinstalldir="/" name="include/grpc/impl/codegen/atm_windows.h" role="src" />
     <file baseinstalldir="/" name="include/grpc/impl/codegen/log.h" role="src" />
     <file baseinstalldir="/" name="include/grpc/impl/codegen/port_platform.h" role="src" />
     <file baseinstalldir="/" name="include/grpc/impl/codegen/slice.h" role="src" />
@@ -171,7 +171,7 @@
     <file baseinstalldir="/" name="include/grpc/impl/codegen/sync.h" role="src" />
     <file baseinstalldir="/" name="include/grpc/impl/codegen/sync_generic.h" role="src" />
     <file baseinstalldir="/" name="include/grpc/impl/codegen/sync_posix.h" role="src" />
-    <file baseinstalldir="/" name="include/grpc/impl/codegen/sync_win32.h" role="src" />
+    <file baseinstalldir="/" name="include/grpc/impl/codegen/sync_windows.h" role="src" />
     <file baseinstalldir="/" name="include/grpc/impl/codegen/time.h" role="src" />
     <file baseinstalldir="/" name="include/grpc/grpc_security.h" role="src" />
     <file baseinstalldir="/" name="include/grpc/grpc_security_constants.h" role="src" />
@@ -209,7 +209,7 @@
     <file baseinstalldir="/" name="src/core/lib/iomgr/sockaddr.h" role="src" />
     <file baseinstalldir="/" name="src/core/lib/iomgr/sockaddr_posix.h" role="src" />
     <file baseinstalldir="/" name="src/core/lib/iomgr/sockaddr_utils.h" role="src" />
-    <file baseinstalldir="/" name="src/core/lib/iomgr/sockaddr_win32.h" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/iomgr/sockaddr_windows.h" role="src" />
     <file baseinstalldir="/" name="src/core/lib/iomgr/socket_utils_posix.h" role="src" />
     <file baseinstalldir="/" name="src/core/lib/iomgr/socket_windows.h" role="src" />
     <file baseinstalldir="/" name="src/core/lib/iomgr/tcp_client.h" role="src" />
@@ -423,7 +423,7 @@
     <file baseinstalldir="/" name="src/core/lib/security/credentials.c" role="src" />
     <file baseinstalldir="/" name="src/core/lib/security/credentials_metadata.c" role="src" />
     <file baseinstalldir="/" name="src/core/lib/security/credentials_posix.c" role="src" />
-    <file baseinstalldir="/" name="src/core/lib/security/credentials_win32.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/security/credentials_windows.c" role="src" />
     <file baseinstalldir="/" name="src/core/lib/security/google_default_credentials.c" role="src" />
     <file baseinstalldir="/" name="src/core/lib/security/handshake.c" role="src" />
     <file baseinstalldir="/" name="src/core/lib/security/json_token.c" role="src" />
diff --git a/src/core/lib/iomgr/iocp_windows.c b/src/core/lib/iomgr/iocp_windows.c
index d46558a..7082322 100644
--- a/src/core/lib/iomgr/iocp_windows.c
+++ b/src/core/lib/iomgr/iocp_windows.c
@@ -39,7 +39,7 @@
 
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
-#include <grpc/support/log_win32.h>
+#include <grpc/support/log_windows.h>
 #include <grpc/support/thd.h>
 
 #include "src/core/lib/iomgr/iocp_windows.h"
diff --git a/src/core/lib/iomgr/iomgr_windows.c b/src/core/lib/iomgr/iomgr_windows.c
index 398517f..7653f6e 100644
--- a/src/core/lib/iomgr/iomgr_windows.c
+++ b/src/core/lib/iomgr/iomgr_windows.c
@@ -35,7 +35,7 @@
 
 #ifdef GPR_WINSOCK_SOCKET
 
-#include "src/core/lib/iomgr/sockaddr_win32.h"
+#include "src/core/lib/iomgr/sockaddr_windows.h"
 
 #include <grpc/support/log.h>
 
diff --git a/src/core/lib/iomgr/resolve_address_windows.c b/src/core/lib/iomgr/resolve_address_windows.c
index 9147362..c1bbb3d 100644
--- a/src/core/lib/iomgr/resolve_address_windows.c
+++ b/src/core/lib/iomgr/resolve_address_windows.c
@@ -43,7 +43,7 @@
 #include <grpc/support/alloc.h>
 #include <grpc/support/host_port.h>
 #include <grpc/support/log.h>
-#include <grpc/support/log_win32.h>
+#include <grpc/support/log_windows.h>
 #include <grpc/support/string_util.h>
 #include <grpc/support/thd.h>
 #include <grpc/support/time.h>
diff --git a/src/core/lib/iomgr/sockaddr.h b/src/core/lib/iomgr/sockaddr.h
index 891a2f0..5563d0b 100644
--- a/src/core/lib/iomgr/sockaddr.h
+++ b/src/core/lib/iomgr/sockaddr.h
@@ -36,8 +36,8 @@
 
 #include <grpc/support/port_platform.h>
 
-#ifdef GPR_WIN32
-#include "src/core/lib/iomgr/sockaddr_win32.h"
+#ifdef GPR_WINDOWS
+#include "src/core/lib/iomgr/sockaddr_windows.h"
 #endif
 
 #ifdef GPR_POSIX_SOCKETADDR
diff --git a/src/core/lib/iomgr/sockaddr_win32.h b/src/core/lib/iomgr/sockaddr_windows.h
similarity index 91%
rename from src/core/lib/iomgr/sockaddr_win32.h
rename to src/core/lib/iomgr/sockaddr_windows.h
index 02aeae7..971db5b 100644
--- a/src/core/lib/iomgr/sockaddr_win32.h
+++ b/src/core/lib/iomgr/sockaddr_windows.h
@@ -31,8 +31,8 @@
  *
  */
 
-#ifndef GRPC_CORE_LIB_IOMGR_SOCKADDR_WIN32_H
-#define GRPC_CORE_LIB_IOMGR_SOCKADDR_WIN32_H
+#ifndef GRPC_CORE_LIB_IOMGR_SOCKADDR_WINDOWS_H
+#define GRPC_CORE_LIB_IOMGR_SOCKADDR_WINDOWS_H
 
 #include <winsock2.h>
 #include <ws2tcpip.h>
@@ -40,4 +40,4 @@
 // must be included after the above
 #include <mswsock.h>
 
-#endif /* GRPC_CORE_LIB_IOMGR_SOCKADDR_WIN32_H */
+#endif /* GRPC_CORE_LIB_IOMGR_SOCKADDR_WINDOWS_H */
diff --git a/src/core/lib/iomgr/socket_windows.c b/src/core/lib/iomgr/socket_windows.c
index ebd77e0..7d8f9f7 100644
--- a/src/core/lib/iomgr/socket_windows.c
+++ b/src/core/lib/iomgr/socket_windows.c
@@ -42,7 +42,7 @@
 
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
-#include <grpc/support/log_win32.h>
+#include <grpc/support/log_windows.h>
 #include <grpc/support/string_util.h>
 
 #include "src/core/lib/iomgr/iocp_windows.h"
diff --git a/src/core/lib/iomgr/tcp_client_windows.c b/src/core/lib/iomgr/tcp_client_windows.c
index 7d78beb..e41f67a 100644
--- a/src/core/lib/iomgr/tcp_client_windows.c
+++ b/src/core/lib/iomgr/tcp_client_windows.c
@@ -35,11 +35,11 @@
 
 #ifdef GPR_WINSOCK_SOCKET
 
-#include "src/core/lib/iomgr/sockaddr_win32.h"
+#include "src/core/lib/iomgr/sockaddr_windows.h"
 
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
-#include <grpc/support/log_win32.h>
+#include <grpc/support/log_windows.h>
 #include <grpc/support/slice_buffer.h>
 #include <grpc/support/useful.h>
 
diff --git a/src/core/lib/iomgr/tcp_server_windows.c b/src/core/lib/iomgr/tcp_server_windows.c
index 6940dec..f32d53d 100644
--- a/src/core/lib/iomgr/tcp_server_windows.c
+++ b/src/core/lib/iomgr/tcp_server_windows.c
@@ -41,7 +41,7 @@
 
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
-#include <grpc/support/log_win32.h>
+#include <grpc/support/log_windows.h>
 #include <grpc/support/string_util.h>
 #include <grpc/support/sync.h>
 #include <grpc/support/time.h>
diff --git a/src/core/lib/iomgr/tcp_windows.c b/src/core/lib/iomgr/tcp_windows.c
index 7ee689a..a6715df 100644
--- a/src/core/lib/iomgr/tcp_windows.c
+++ b/src/core/lib/iomgr/tcp_windows.c
@@ -35,11 +35,11 @@
 
 #ifdef GPR_WINSOCK_SOCKET
 
-#include "src/core/lib/iomgr/sockaddr_win32.h"
+#include "src/core/lib/iomgr/sockaddr_windows.h"
 
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
-#include <grpc/support/log_win32.h>
+#include <grpc/support/log_windows.h>
 #include <grpc/support/slice_buffer.h>
 #include <grpc/support/string_util.h>
 #include <grpc/support/useful.h>
diff --git a/src/core/lib/iomgr/workqueue.h b/src/core/lib/iomgr/workqueue.h
index 3e2b223..eeca8c0 100644
--- a/src/core/lib/iomgr/workqueue.h
+++ b/src/core/lib/iomgr/workqueue.h
@@ -43,7 +43,7 @@
 #include "src/core/lib/iomgr/workqueue_posix.h"
 #endif
 
-#ifdef GPR_WIN32
+#ifdef GPR_WINDOWS
 #include "src/core/lib/iomgr/workqueue_windows.h"
 #endif
 
diff --git a/src/core/lib/iomgr/workqueue_windows.c b/src/core/lib/iomgr/workqueue_windows.c
index c3c0446..275f040 100644
--- a/src/core/lib/iomgr/workqueue_windows.c
+++ b/src/core/lib/iomgr/workqueue_windows.c
@@ -33,8 +33,8 @@
 
 #include <grpc/support/port_platform.h>
 
-#ifdef GPR_WIN32
+#ifdef GPR_WINDOWS
 
 #include "src/core/lib/iomgr/workqueue.h"
 
-#endif /* GPR_WIN32 */
+#endif /* GPR_WINDOWS */
diff --git a/src/core/lib/security/credentials_win32.c b/src/core/lib/security/credentials_windows.c
similarity index 97%
rename from src/core/lib/security/credentials_win32.c
rename to src/core/lib/security/credentials_windows.c
index d29847a..4b5e94f 100644
--- a/src/core/lib/security/credentials_win32.c
+++ b/src/core/lib/security/credentials_windows.c
@@ -33,7 +33,7 @@
 
 #include <grpc/support/port_platform.h>
 
-#ifdef GPR_WIN32
+#ifdef GPR_WINDOWS
 
 #include "src/core/lib/security/credentials.h"
 
@@ -58,4 +58,4 @@
   return result;
 }
 
-#endif /* GPR_WIN32 */
+#endif /* GPR_WINDOWS */
diff --git a/src/core/lib/support/cpu_windows.c b/src/core/lib/support/cpu_windows.c
index ce32eb0..34d006b 100644
--- a/src/core/lib/support/cpu_windows.c
+++ b/src/core/lib/support/cpu_windows.c
@@ -33,7 +33,7 @@
 
 #include <grpc/support/port_platform.h>
 
-#ifdef GPR_WIN32
+#ifdef GPR_WINDOWS
 #include <grpc/support/log.h>
 
 unsigned gpr_cpu_num_cores(void) {
@@ -44,4 +44,4 @@
 
 unsigned gpr_cpu_current_cpu(void) { return GetCurrentProcessorNumber(); }
 
-#endif /* GPR_WIN32 */
+#endif /* GPR_WINDOWS */
diff --git a/src/core/lib/support/env_win32.c b/src/core/lib/support/env_windows.c
similarity index 97%
rename from src/core/lib/support/env_win32.c
rename to src/core/lib/support/env_windows.c
index ef84c94..796b93f 100644
--- a/src/core/lib/support/env_win32.c
+++ b/src/core/lib/support/env_windows.c
@@ -33,7 +33,7 @@
 
 #include <grpc/support/port_platform.h>
 
-#ifdef GPR_WIN32
+#ifdef GPR_WINDOWS
 
 #include "src/core/lib/support/env.h"
 #include "src/core/lib/support/string.h"
@@ -70,4 +70,4 @@
   GPR_ASSERT(res == 0);
 }
 
-#endif /* GPR_WIN32 */
+#endif /* GPR_WINDOWS */
diff --git a/src/core/lib/support/log_win32.c b/src/core/lib/support/log_windows.c
similarity index 96%
rename from src/core/lib/support/log_win32.c
rename to src/core/lib/support/log_windows.c
index ba78497..801042f 100644
--- a/src/core/lib/support/log_win32.c
+++ b/src/core/lib/support/log_windows.c
@@ -33,19 +33,19 @@
 
 #include <grpc/support/port_platform.h>
 
-#ifdef GPR_WIN32
+#ifdef GPR_WINDOWS
 
 #include <stdarg.h>
 #include <stdio.h>
 
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
-#include <grpc/support/log_win32.h>
+#include <grpc/support/log_windows.h>
 #include <grpc/support/string_util.h>
 #include <grpc/support/time.h>
 
 #include "src/core/lib/support/string.h"
-#include "src/core/lib/support/string_win32.h"
+#include "src/core/lib/support/string_windows.h"
 
 void gpr_log(const char *file, int line, gpr_log_severity severity,
              const char *format, ...) {
@@ -123,4 +123,4 @@
   return message;
 }
 
-#endif /* GPR_WIN32 */
+#endif /* GPR_WINDOWS */
diff --git a/src/core/lib/support/string_win32.c b/src/core/lib/support/string_windows.c
similarity index 98%
rename from src/core/lib/support/string_win32.c
rename to src/core/lib/support/string_windows.c
index a2f9857..c89c89f 100644
--- a/src/core/lib/support/string_win32.c
+++ b/src/core/lib/support/string_windows.c
@@ -35,7 +35,7 @@
 
 #include <grpc/support/port_platform.h>
 
-#ifdef GPR_WIN32
+#ifdef GPR_WINDOWS
 
 #include <stdarg.h>
 #include <stdio.h>
@@ -106,4 +106,4 @@
 char *gpr_char_to_tchar(LPTSTR input) { return gpr_strdup(input); }
 #endif
 
-#endif /* GPR_WIN32 */
+#endif /* GPR_WINDOWS */
diff --git a/src/core/lib/support/string_win32.h b/src/core/lib/support/string_windows.h
similarity index 89%
rename from src/core/lib/support/string_win32.h
rename to src/core/lib/support/string_windows.h
index ff4a694..899563b 100644
--- a/src/core/lib/support/string_win32.h
+++ b/src/core/lib/support/string_windows.h
@@ -31,17 +31,17 @@
  *
  */
 
-#ifndef GRPC_CORE_LIB_SUPPORT_STRING_WIN32_H
-#define GRPC_CORE_LIB_SUPPORT_STRING_WIN32_H
+#ifndef GRPC_CORE_LIB_SUPPORT_STRING_WINDOWS_H
+#define GRPC_CORE_LIB_SUPPORT_STRING_WINDOWS_H
 
 #include <grpc/support/port_platform.h>
 
-#ifdef GPR_WIN32
+#ifdef GPR_WINDOWS
 
 /* These allocate new strings using gpr_malloc to convert from and to utf-8. */
 LPTSTR gpr_char_to_tchar(LPCSTR input);
 LPSTR gpr_tchar_to_char(LPCTSTR input);
 
-#endif /* GPR_WIN32 */
+#endif /* GPR_WINDOWS */
 
-#endif /* GRPC_CORE_LIB_SUPPORT_STRING_WIN32_H */
+#endif /* GRPC_CORE_LIB_SUPPORT_STRING_WINDOWS_H */
diff --git a/src/core/lib/support/subprocess_windows.c b/src/core/lib/support/subprocess_windows.c
index 264306f..dee8c44 100644
--- a/src/core/lib/support/subprocess_windows.c
+++ b/src/core/lib/support/subprocess_windows.c
@@ -43,7 +43,7 @@
 #include <grpc/support/log.h>
 #include <grpc/support/subprocess.h>
 #include "src/core/lib/support/string.h"
-#include "src/core/lib/support/string_win32.h"
+#include "src/core/lib/support/string_windows.h"
 
 struct gpr_subprocess {
   PROCESS_INFORMATION pi;
diff --git a/src/core/lib/support/sync_win32.c b/src/core/lib/support/sync_windows.c
similarity index 98%
rename from src/core/lib/support/sync_win32.c
rename to src/core/lib/support/sync_windows.c
index 470a9f9..8f0e8ff 100644
--- a/src/core/lib/support/sync_win32.c
+++ b/src/core/lib/support/sync_windows.c
@@ -35,7 +35,7 @@
 
 #include <grpc/support/port_platform.h>
 
-#ifdef GPR_WIN32
+#ifdef GPR_WINDOWS
 
 #include <grpc/support/log.h>
 #include <grpc/support/sync.h>
@@ -130,4 +130,4 @@
   InitOnceExecuteOnce(once, run_once_func, &arg, &dummy);
 }
 
-#endif /* GPR_WIN32 */
+#endif /* GPR_WINDOWS */
diff --git a/src/core/lib/support/thd_win32.c b/src/core/lib/support/thd_windows.c
similarity index 98%
rename from src/core/lib/support/thd_win32.c
rename to src/core/lib/support/thd_windows.c
index 6deb314..74d2250 100644
--- a/src/core/lib/support/thd_win32.c
+++ b/src/core/lib/support/thd_windows.c
@@ -35,7 +35,7 @@
 
 #include <grpc/support/port_platform.h>
 
-#ifdef GPR_WIN32
+#ifdef GPR_WINDOWS
 
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
@@ -114,4 +114,4 @@
   destroy_thread(info);
 }
 
-#endif /* GPR_WIN32 */
+#endif /* GPR_WINDOWS */
diff --git a/src/core/lib/support/time_win32.c b/src/core/lib/support/time_windows.c
similarity index 98%
rename from src/core/lib/support/time_win32.c
rename to src/core/lib/support/time_windows.c
index f7acbd1..5ba62b3 100644
--- a/src/core/lib/support/time_win32.c
+++ b/src/core/lib/support/time_windows.c
@@ -35,7 +35,7 @@
 
 #include <grpc/support/port_platform.h>
 
-#ifdef GPR_WIN32
+#ifdef GPR_WINDOWS
 
 #include <grpc/support/log.h>
 #include <grpc/support/time.h>
@@ -107,4 +107,4 @@
   }
 }
 
-#endif /* GPR_WIN32 */
+#endif /* GPR_WINDOWS */
diff --git a/src/core/lib/support/tmpfile_win32.c b/src/core/lib/support/tmpfile_windows.c
similarity index 96%
rename from src/core/lib/support/tmpfile_win32.c
rename to src/core/lib/support/tmpfile_windows.c
index 0cb2904..11d05a6 100644
--- a/src/core/lib/support/tmpfile_win32.c
+++ b/src/core/lib/support/tmpfile_windows.c
@@ -33,7 +33,7 @@
 
 #include <grpc/support/port_platform.h>
 
-#ifdef GPR_WIN32
+#ifdef GPR_WINDOWS
 
 #include <io.h>
 #include <stdio.h>
@@ -44,7 +44,7 @@
 #include <grpc/support/log.h>
 #include <grpc/support/string_util.h>
 
-#include "src/core/lib/support/string_win32.h"
+#include "src/core/lib/support/string_windows.h"
 #include "src/core/lib/support/tmpfile.h"
 
 FILE *gpr_tmpfile(const char *prefix, char **tmp_filename_out) {
@@ -81,4 +81,4 @@
   return result;
 }
 
-#endif /* GPR_WIN32 */
+#endif /* GPR_WINDOWS */
diff --git a/src/csharp/ext/grpc_csharp_ext.c b/src/csharp/ext/grpc_csharp_ext.c
index aeef8a7..deb52cf 100644
--- a/src/csharp/ext/grpc_csharp_ext.c
+++ b/src/csharp/ext/grpc_csharp_ext.c
@@ -45,7 +45,7 @@
 
 #include <string.h>
 
-#ifdef GPR_WIN32
+#ifdef GPR_WINDOWS
 #define GPR_EXPORT __declspec(dllexport)
 #define GPR_CALLTYPE __stdcall
 #endif
diff --git a/src/python/grpcio/grpc/_cython/imports.generated.c b/src/python/grpcio/grpc/_cython/imports.generated.c
index 9ab0696..73b80a5 100644
--- a/src/python/grpcio/grpc/_cython/imports.generated.c
+++ b/src/python/grpcio/grpc/_cython/imports.generated.c
@@ -35,7 +35,7 @@
 
 #include "imports.generated.h"
 
-#ifdef GPR_WIN32
+#ifdef GPR_WINDOWS
 
 census_initialize_type census_initialize_import;
 census_shutdown_type census_shutdown_import;
@@ -575,4 +575,4 @@
 }
 #endif  /* __cpluslus */
 
-#endif /* !GPR_WIN32 */
+#endif /* !GPR_WINDOWS */
diff --git a/src/python/grpcio/grpc/_cython/imports.generated.h b/src/python/grpcio/grpc/_cython/imports.generated.h
index e50051d..04fbca8 100644
--- a/src/python/grpcio/grpc/_cython/imports.generated.h
+++ b/src/python/grpcio/grpc/_cython/imports.generated.h
@@ -36,7 +36,7 @@
 
 #include <grpc/support/port_platform.h>
 
-#ifdef GPR_WIN32
+#ifdef GPR_WINDOWS
 
 #include <windows.h>
 
@@ -56,7 +56,7 @@
 #include <grpc/support/cpu.h>
 #include <grpc/support/histogram.h>
 #include <grpc/support/host_port.h>
-#include <grpc/support/log_win32.h>
+#include <grpc/support/log_windows.h>
 #include <grpc/support/string_util.h>
 #include <grpc/support/subprocess.h>
 #include <grpc/support/thd.h>
@@ -861,7 +861,7 @@
 }
 #endif  /* __cpluslus */
 
-#else /* !GPR_WIN32 */
+#else /* !GPR_WINDOWS */
 
 #include <grpc/support/alloc.h>
 #include <grpc/support/slice.h>
@@ -872,6 +872,6 @@
 #include <grpc/grpc.h>
 #include <grpc/grpc_security.h>
 
-#endif /* !GPR_WIN32 */
+#endif /* !GPR_WINDOWS */
 
 #endif
diff --git a/src/python/grpcio/grpc/_cython/loader.c b/src/python/grpcio/grpc/_cython/loader.c
index 3b72806..b909ad5 100644
--- a/src/python/grpcio/grpc/_cython/loader.c
+++ b/src/python/grpcio/grpc/_cython/loader.c
@@ -37,7 +37,7 @@
 extern "C" {
 #endif  /* __cpluslus  */
 
-#if GPR_WIN32
+#if GPR_WINDOWS
 
 int pygrpc_load_core(char *path) {
   HMODULE grpc_c;
@@ -60,7 +60,7 @@
 
 int pygrpc_load_core(char *path) { return 1; }
 
-#endif  /* !GPR_WIN32 */
+#endif  /* !GPR_WINDOWS */
 
 #ifdef __cplusplus
 }
diff --git a/src/python/grpcio/grpc_core_dependencies.py b/src/python/grpcio/grpc_core_dependencies.py
index c5a0a39..00bec5d 100644
--- a/src/python/grpcio/grpc_core_dependencies.py
+++ b/src/python/grpcio/grpc_core_dependencies.py
@@ -42,7 +42,7 @@
   'src/core/lib/support/cpu_windows.c',
   'src/core/lib/support/env_linux.c',
   'src/core/lib/support/env_posix.c',
-  'src/core/lib/support/env_win32.c',
+  'src/core/lib/support/env_windows.c',
   'src/core/lib/support/histogram.c',
   'src/core/lib/support/host_port.c',
   'src/core/lib/support/load_file.c',
@@ -50,29 +50,29 @@
   'src/core/lib/support/log_android.c',
   'src/core/lib/support/log_linux.c',
   'src/core/lib/support/log_posix.c',
-  'src/core/lib/support/log_win32.c',
+  'src/core/lib/support/log_windows.c',
   'src/core/lib/support/murmur_hash.c',
   'src/core/lib/support/slice.c',
   'src/core/lib/support/slice_buffer.c',
   'src/core/lib/support/stack_lockfree.c',
   'src/core/lib/support/string.c',
   'src/core/lib/support/string_posix.c',
-  'src/core/lib/support/string_win32.c',
+  'src/core/lib/support/string_windows.c',
   'src/core/lib/support/subprocess_posix.c',
   'src/core/lib/support/subprocess_windows.c',
   'src/core/lib/support/sync.c',
   'src/core/lib/support/sync_posix.c',
-  'src/core/lib/support/sync_win32.c',
+  'src/core/lib/support/sync_windows.c',
   'src/core/lib/support/thd.c',
   'src/core/lib/support/thd_posix.c',
-  'src/core/lib/support/thd_win32.c',
+  'src/core/lib/support/thd_windows.c',
   'src/core/lib/support/time.c',
   'src/core/lib/support/time_posix.c',
   'src/core/lib/support/time_precise.c',
-  'src/core/lib/support/time_win32.c',
+  'src/core/lib/support/time_windows.c',
   'src/core/lib/support/tls_pthread.c',
   'src/core/lib/support/tmpfile_posix.c',
-  'src/core/lib/support/tmpfile_win32.c',
+  'src/core/lib/support/tmpfile_windows.c',
   'src/core/lib/support/wrap_memcpy.c',
   'src/core/lib/surface/init.c',
   'src/core/lib/channel/channel_args.c',
@@ -185,7 +185,7 @@
   'src/core/lib/security/credentials.c',
   'src/core/lib/security/credentials_metadata.c',
   'src/core/lib/security/credentials_posix.c',
-  'src/core/lib/security/credentials_win32.c',
+  'src/core/lib/security/credentials_windows.c',
   'src/core/lib/security/google_default_credentials.c',
   'src/core/lib/security/handshake.c',
   'src/core/lib/security/json_token.c',
diff --git a/src/ruby/ext/grpc/rb_grpc_imports.generated.c b/src/ruby/ext/grpc/rb_grpc_imports.generated.c
index e2068d7..183bfcb 100644
--- a/src/ruby/ext/grpc/rb_grpc_imports.generated.c
+++ b/src/ruby/ext/grpc/rb_grpc_imports.generated.c
@@ -33,7 +33,7 @@
 
 #include <grpc/support/port_platform.h>
 
-#ifdef GPR_WIN32
+#ifdef GPR_WINDOWS
 
 #include "rb_grpc_imports.generated.h"
 
@@ -567,4 +567,4 @@
   gpr_thd_join_import = (gpr_thd_join_type) GetProcAddress(library, "gpr_thd_join");
 }
 
-#endif /* GPR_WIN32 */
+#endif /* GPR_WINDOWS */
diff --git a/src/ruby/ext/grpc/rb_grpc_imports.generated.h b/src/ruby/ext/grpc/rb_grpc_imports.generated.h
index c8d2133..f9ceb59 100644
--- a/src/ruby/ext/grpc/rb_grpc_imports.generated.h
+++ b/src/ruby/ext/grpc/rb_grpc_imports.generated.h
@@ -36,7 +36,7 @@
 
 #include <grpc/support/port_platform.h>
 
-#ifdef GPR_WIN32
+#ifdef GPR_WINDOWS
 
 #include <windows.h>
 
@@ -56,7 +56,7 @@
 #include <grpc/support/cpu.h>
 #include <grpc/support/histogram.h>
 #include <grpc/support/host_port.h>
-#include <grpc/support/log_win32.h>
+#include <grpc/support/log_windows.h>
 #include <grpc/support/string_util.h>
 #include <grpc/support/subprocess.h>
 #include <grpc/support/thd.h>
@@ -853,6 +853,6 @@
 
 void grpc_rb_load_imports(HMODULE library);
 
-#endif /* GPR_WIN32 */
+#endif /* GPR_WINDOWS */
 
 #endif
diff --git a/src/ruby/ext/grpc/rb_loader.c b/src/ruby/ext/grpc/rb_loader.c
index 242535f..19a6b33 100644
--- a/src/ruby/ext/grpc/rb_loader.c
+++ b/src/ruby/ext/grpc/rb_loader.c
@@ -33,7 +33,7 @@
 
 #include "rb_grpc_imports.generated.h"
 
-#if GPR_WIN32
+#if GPR_WINDOWS
 #include <tchar.h>
 
 int grpc_rb_load_core() {
diff --git a/templates/src/python/grpcio/grpc/_cython/imports.generated.c.template b/templates/src/python/grpcio/grpc/_cython/imports.generated.c.template
index 62fe094..84fa5e6 100644
--- a/templates/src/python/grpcio/grpc/_cython/imports.generated.c.template
+++ b/templates/src/python/grpcio/grpc/_cython/imports.generated.c.template
@@ -37,7 +37,7 @@
 
   #include "imports.generated.h"
 
-  #ifdef GPR_WIN32
+  #ifdef GPR_WINDOWS
 
   %for api in c_apis:
   ${api.name}_type ${api.name}_import;
@@ -57,5 +57,5 @@
   }
   #endif  /* __cpluslus */
 
-  #endif /* !GPR_WIN32 */
+  #endif /* !GPR_WINDOWS */
 
diff --git a/templates/src/python/grpcio/grpc/_cython/imports.generated.h.template b/templates/src/python/grpcio/grpc/_cython/imports.generated.h.template
index 8e7c183..5625dcc 100644
--- a/templates/src/python/grpcio/grpc/_cython/imports.generated.h.template
+++ b/templates/src/python/grpcio/grpc/_cython/imports.generated.h.template
@@ -38,7 +38,7 @@
 
   #include <grpc/support/port_platform.h>
 
-  #ifdef GPR_WIN32
+  #ifdef GPR_WINDOWS
 
   #include <windows.h>
 
@@ -62,7 +62,7 @@
   }
   #endif  /* __cpluslus */
 
-  #else /* !GPR_WIN32 */
+  #else /* !GPR_WINDOWS */
 
   #include <grpc/support/alloc.h>
   #include <grpc/support/slice.h>
@@ -73,6 +73,6 @@
   #include <grpc/grpc.h>
   #include <grpc/grpc_security.h>
 
-  #endif /* !GPR_WIN32 */
+  #endif /* !GPR_WINDOWS */
 
   #endif
diff --git a/templates/src/ruby/ext/grpc/rb_grpc_imports.generated.c.template b/templates/src/ruby/ext/grpc/rb_grpc_imports.generated.c.template
index e09a587..232f3e7 100644
--- a/templates/src/ruby/ext/grpc/rb_grpc_imports.generated.c.template
+++ b/templates/src/ruby/ext/grpc/rb_grpc_imports.generated.c.template
@@ -35,7 +35,7 @@
 
   #include <grpc/support/port_platform.h>
 
-  #ifdef GPR_WIN32
+  #ifdef GPR_WINDOWS
 
   #include "rb_grpc_imports.generated.h"
 
@@ -49,4 +49,4 @@
   %endfor
   }
 
-  #endif /* GPR_WIN32 */
+  #endif /* GPR_WINDOWS */
diff --git a/templates/src/ruby/ext/grpc/rb_grpc_imports.generated.h.template b/templates/src/ruby/ext/grpc/rb_grpc_imports.generated.h.template
index 9f17ede..68172fc 100644
--- a/templates/src/ruby/ext/grpc/rb_grpc_imports.generated.h.template
+++ b/templates/src/ruby/ext/grpc/rb_grpc_imports.generated.h.template
@@ -38,7 +38,7 @@
 
   #include <grpc/support/port_platform.h>
 
-  #ifdef GPR_WIN32
+  #ifdef GPR_WINDOWS
 
   #include <windows.h>
 
@@ -54,6 +54,6 @@
 
   void grpc_rb_load_imports(HMODULE library);
 
-  #endif /* GPR_WIN32 */
+  #endif /* GPR_WINDOWS */
 
   #endif
diff --git a/tools/doxygen/Doxyfile.c++ b/tools/doxygen/Doxyfile.c++
index 7dc0496..11363d2 100644
--- a/tools/doxygen/Doxyfile.c++
+++ b/tools/doxygen/Doxyfile.c++
@@ -842,7 +842,7 @@
 include/grpc/impl/codegen/atm.h \
 include/grpc/impl/codegen/atm_gcc_atomic.h \
 include/grpc/impl/codegen/atm_gcc_sync.h \
-include/grpc/impl/codegen/atm_win32.h \
+include/grpc/impl/codegen/atm_windows.h \
 include/grpc/impl/codegen/log.h \
 include/grpc/impl/codegen/port_platform.h \
 include/grpc/impl/codegen/slice.h \
@@ -850,7 +850,7 @@
 include/grpc/impl/codegen/sync.h \
 include/grpc/impl/codegen/sync_generic.h \
 include/grpc/impl/codegen/sync_posix.h \
-include/grpc/impl/codegen/sync_win32.h \
+include/grpc/impl/codegen/sync_windows.h \
 include/grpc/impl/codegen/time.h \
 include/grpc++/impl/codegen/config.h \
 include/grpc++/impl/codegen/config_protobuf.h \
diff --git a/tools/doxygen/Doxyfile.c++.internal b/tools/doxygen/Doxyfile.c++.internal
index 312fd17..b097c37 100644
--- a/tools/doxygen/Doxyfile.c++.internal
+++ b/tools/doxygen/Doxyfile.c++.internal
@@ -842,7 +842,7 @@
 include/grpc/impl/codegen/atm.h \
 include/grpc/impl/codegen/atm_gcc_atomic.h \
 include/grpc/impl/codegen/atm_gcc_sync.h \
-include/grpc/impl/codegen/atm_win32.h \
+include/grpc/impl/codegen/atm_windows.h \
 include/grpc/impl/codegen/log.h \
 include/grpc/impl/codegen/port_platform.h \
 include/grpc/impl/codegen/slice.h \
@@ -850,7 +850,7 @@
 include/grpc/impl/codegen/sync.h \
 include/grpc/impl/codegen/sync_generic.h \
 include/grpc/impl/codegen/sync_posix.h \
-include/grpc/impl/codegen/sync_win32.h \
+include/grpc/impl/codegen/sync_windows.h \
 include/grpc/impl/codegen/time.h \
 include/grpc++/impl/codegen/config.h \
 include/grpc++/impl/codegen/config_protobuf.h \
diff --git a/tools/doxygen/Doxyfile.core b/tools/doxygen/Doxyfile.core
index 034d9c6..0ad33b3 100644
--- a/tools/doxygen/Doxyfile.core
+++ b/tools/doxygen/Doxyfile.core
@@ -775,7 +775,7 @@
 include/grpc/impl/codegen/atm.h \
 include/grpc/impl/codegen/atm_gcc_atomic.h \
 include/grpc/impl/codegen/atm_gcc_sync.h \
-include/grpc/impl/codegen/atm_win32.h \
+include/grpc/impl/codegen/atm_windows.h \
 include/grpc/impl/codegen/log.h \
 include/grpc/impl/codegen/port_platform.h \
 include/grpc/impl/codegen/slice.h \
@@ -783,7 +783,7 @@
 include/grpc/impl/codegen/sync.h \
 include/grpc/impl/codegen/sync_generic.h \
 include/grpc/impl/codegen/sync_posix.h \
-include/grpc/impl/codegen/sync_win32.h \
+include/grpc/impl/codegen/sync_windows.h \
 include/grpc/impl/codegen/time.h \
 include/grpc/grpc_security.h \
 include/grpc/grpc_security_constants.h \
@@ -792,14 +792,14 @@
 include/grpc/support/atm.h \
 include/grpc/support/atm_gcc_atomic.h \
 include/grpc/support/atm_gcc_sync.h \
-include/grpc/support/atm_win32.h \
+include/grpc/support/atm_windows.h \
 include/grpc/support/avl.h \
 include/grpc/support/cmdline.h \
 include/grpc/support/cpu.h \
 include/grpc/support/histogram.h \
 include/grpc/support/host_port.h \
 include/grpc/support/log.h \
-include/grpc/support/log_win32.h \
+include/grpc/support/log_windows.h \
 include/grpc/support/port_platform.h \
 include/grpc/support/slice.h \
 include/grpc/support/slice_buffer.h \
@@ -808,7 +808,7 @@
 include/grpc/support/sync.h \
 include/grpc/support/sync_generic.h \
 include/grpc/support/sync_posix.h \
-include/grpc/support/sync_win32.h \
+include/grpc/support/sync_windows.h \
 include/grpc/support/thd.h \
 include/grpc/support/time.h \
 include/grpc/support/tls.h \
@@ -820,7 +820,7 @@
 include/grpc/impl/codegen/atm.h \
 include/grpc/impl/codegen/atm_gcc_atomic.h \
 include/grpc/impl/codegen/atm_gcc_sync.h \
-include/grpc/impl/codegen/atm_win32.h \
+include/grpc/impl/codegen/atm_windows.h \
 include/grpc/impl/codegen/log.h \
 include/grpc/impl/codegen/port_platform.h \
 include/grpc/impl/codegen/slice.h \
@@ -828,7 +828,7 @@
 include/grpc/impl/codegen/sync.h \
 include/grpc/impl/codegen/sync_generic.h \
 include/grpc/impl/codegen/sync_posix.h \
-include/grpc/impl/codegen/sync_win32.h \
+include/grpc/impl/codegen/sync_windows.h \
 include/grpc/impl/codegen/time.h
 
 # This tag can be used to specify the character encoding of the source files
diff --git a/tools/doxygen/Doxyfile.core.internal b/tools/doxygen/Doxyfile.core.internal
index 3a774a7..5973c5a 100644
--- a/tools/doxygen/Doxyfile.core.internal
+++ b/tools/doxygen/Doxyfile.core.internal
@@ -775,7 +775,7 @@
 include/grpc/impl/codegen/atm.h \
 include/grpc/impl/codegen/atm_gcc_atomic.h \
 include/grpc/impl/codegen/atm_gcc_sync.h \
-include/grpc/impl/codegen/atm_win32.h \
+include/grpc/impl/codegen/atm_windows.h \
 include/grpc/impl/codegen/log.h \
 include/grpc/impl/codegen/port_platform.h \
 include/grpc/impl/codegen/slice.h \
@@ -783,7 +783,7 @@
 include/grpc/impl/codegen/sync.h \
 include/grpc/impl/codegen/sync_generic.h \
 include/grpc/impl/codegen/sync_posix.h \
-include/grpc/impl/codegen/sync_win32.h \
+include/grpc/impl/codegen/sync_windows.h \
 include/grpc/impl/codegen/time.h \
 include/grpc/grpc_security.h \
 include/grpc/grpc_security_constants.h \
@@ -821,7 +821,7 @@
 src/core/lib/iomgr/sockaddr.h \
 src/core/lib/iomgr/sockaddr_posix.h \
 src/core/lib/iomgr/sockaddr_utils.h \
-src/core/lib/iomgr/sockaddr_win32.h \
+src/core/lib/iomgr/sockaddr_windows.h \
 src/core/lib/iomgr/socket_utils_posix.h \
 src/core/lib/iomgr/socket_windows.h \
 src/core/lib/iomgr/tcp_client.h \
@@ -1035,7 +1035,7 @@
 src/core/lib/security/credentials.c \
 src/core/lib/security/credentials_metadata.c \
 src/core/lib/security/credentials_posix.c \
-src/core/lib/security/credentials_win32.c \
+src/core/lib/security/credentials_windows.c \
 src/core/lib/security/google_default_credentials.c \
 src/core/lib/security/handshake.c \
 src/core/lib/security/json_token.c \
@@ -1093,14 +1093,14 @@
 include/grpc/support/atm.h \
 include/grpc/support/atm_gcc_atomic.h \
 include/grpc/support/atm_gcc_sync.h \
-include/grpc/support/atm_win32.h \
+include/grpc/support/atm_windows.h \
 include/grpc/support/avl.h \
 include/grpc/support/cmdline.h \
 include/grpc/support/cpu.h \
 include/grpc/support/histogram.h \
 include/grpc/support/host_port.h \
 include/grpc/support/log.h \
-include/grpc/support/log_win32.h \
+include/grpc/support/log_windows.h \
 include/grpc/support/port_platform.h \
 include/grpc/support/slice.h \
 include/grpc/support/slice_buffer.h \
@@ -1109,7 +1109,7 @@
 include/grpc/support/sync.h \
 include/grpc/support/sync_generic.h \
 include/grpc/support/sync_posix.h \
-include/grpc/support/sync_win32.h \
+include/grpc/support/sync_windows.h \
 include/grpc/support/thd.h \
 include/grpc/support/time.h \
 include/grpc/support/tls.h \
@@ -1121,7 +1121,7 @@
 include/grpc/impl/codegen/atm.h \
 include/grpc/impl/codegen/atm_gcc_atomic.h \
 include/grpc/impl/codegen/atm_gcc_sync.h \
-include/grpc/impl/codegen/atm_win32.h \
+include/grpc/impl/codegen/atm_windows.h \
 include/grpc/impl/codegen/log.h \
 include/grpc/impl/codegen/port_platform.h \
 include/grpc/impl/codegen/slice.h \
@@ -1129,7 +1129,7 @@
 include/grpc/impl/codegen/sync.h \
 include/grpc/impl/codegen/sync_generic.h \
 include/grpc/impl/codegen/sync_posix.h \
-include/grpc/impl/codegen/sync_win32.h \
+include/grpc/impl/codegen/sync_windows.h \
 include/grpc/impl/codegen/time.h \
 src/core/lib/profiling/timers.h \
 src/core/lib/support/backoff.h \
@@ -1139,7 +1139,7 @@
 src/core/lib/support/murmur_hash.h \
 src/core/lib/support/stack_lockfree.h \
 src/core/lib/support/string.h \
-src/core/lib/support/string_win32.h \
+src/core/lib/support/string_windows.h \
 src/core/lib/support/thd_internal.h \
 src/core/lib/support/time_precise.h \
 src/core/lib/support/tmpfile.h \
@@ -1155,7 +1155,7 @@
 src/core/lib/support/cpu_windows.c \
 src/core/lib/support/env_linux.c \
 src/core/lib/support/env_posix.c \
-src/core/lib/support/env_win32.c \
+src/core/lib/support/env_windows.c \
 src/core/lib/support/histogram.c \
 src/core/lib/support/host_port.c \
 src/core/lib/support/load_file.c \
@@ -1163,29 +1163,29 @@
 src/core/lib/support/log_android.c \
 src/core/lib/support/log_linux.c \
 src/core/lib/support/log_posix.c \
-src/core/lib/support/log_win32.c \
+src/core/lib/support/log_windows.c \
 src/core/lib/support/murmur_hash.c \
 src/core/lib/support/slice.c \
 src/core/lib/support/slice_buffer.c \
 src/core/lib/support/stack_lockfree.c \
 src/core/lib/support/string.c \
 src/core/lib/support/string_posix.c \
-src/core/lib/support/string_win32.c \
+src/core/lib/support/string_windows.c \
 src/core/lib/support/subprocess_posix.c \
 src/core/lib/support/subprocess_windows.c \
 src/core/lib/support/sync.c \
 src/core/lib/support/sync_posix.c \
-src/core/lib/support/sync_win32.c \
+src/core/lib/support/sync_windows.c \
 src/core/lib/support/thd.c \
 src/core/lib/support/thd_posix.c \
-src/core/lib/support/thd_win32.c \
+src/core/lib/support/thd_windows.c \
 src/core/lib/support/time.c \
 src/core/lib/support/time_posix.c \
 src/core/lib/support/time_precise.c \
-src/core/lib/support/time_win32.c \
+src/core/lib/support/time_windows.c \
 src/core/lib/support/tls_pthread.c \
 src/core/lib/support/tmpfile_posix.c \
-src/core/lib/support/tmpfile_win32.c \
+src/core/lib/support/tmpfile_windows.c \
 src/core/lib/support/wrap_memcpy.c
 
 # This tag can be used to specify the character encoding of the source files
diff --git a/tools/run_tests/sources_and_headers.json b/tools/run_tests/sources_and_headers.json
index e94387c..5e9e7f4 100644
--- a/tools/run_tests/sources_and_headers.json
+++ b/tools/run_tests/sources_and_headers.json
@@ -5394,14 +5394,14 @@
       "include/grpc/support/atm.h", 
       "include/grpc/support/atm_gcc_atomic.h", 
       "include/grpc/support/atm_gcc_sync.h", 
-      "include/grpc/support/atm_win32.h", 
+      "include/grpc/support/atm_windows.h", 
       "include/grpc/support/avl.h", 
       "include/grpc/support/cmdline.h", 
       "include/grpc/support/cpu.h", 
       "include/grpc/support/histogram.h", 
       "include/grpc/support/host_port.h", 
       "include/grpc/support/log.h", 
-      "include/grpc/support/log_win32.h", 
+      "include/grpc/support/log_windows.h", 
       "include/grpc/support/port_platform.h", 
       "include/grpc/support/slice.h", 
       "include/grpc/support/slice_buffer.h", 
@@ -5410,7 +5410,7 @@
       "include/grpc/support/sync.h", 
       "include/grpc/support/sync_generic.h", 
       "include/grpc/support/sync_posix.h", 
-      "include/grpc/support/sync_win32.h", 
+      "include/grpc/support/sync_windows.h", 
       "include/grpc/support/thd.h", 
       "include/grpc/support/time.h", 
       "include/grpc/support/tls.h", 
@@ -5426,7 +5426,7 @@
       "src/core/lib/support/murmur_hash.h", 
       "src/core/lib/support/stack_lockfree.h", 
       "src/core/lib/support/string.h", 
-      "src/core/lib/support/string_win32.h", 
+      "src/core/lib/support/string_windows.h", 
       "src/core/lib/support/thd_internal.h", 
       "src/core/lib/support/time_precise.h", 
       "src/core/lib/support/tmpfile.h"
@@ -5438,14 +5438,14 @@
       "include/grpc/support/atm.h", 
       "include/grpc/support/atm_gcc_atomic.h", 
       "include/grpc/support/atm_gcc_sync.h", 
-      "include/grpc/support/atm_win32.h", 
+      "include/grpc/support/atm_windows.h", 
       "include/grpc/support/avl.h", 
       "include/grpc/support/cmdline.h", 
       "include/grpc/support/cpu.h", 
       "include/grpc/support/histogram.h", 
       "include/grpc/support/host_port.h", 
       "include/grpc/support/log.h", 
-      "include/grpc/support/log_win32.h", 
+      "include/grpc/support/log_windows.h", 
       "include/grpc/support/port_platform.h", 
       "include/grpc/support/slice.h", 
       "include/grpc/support/slice_buffer.h", 
@@ -5454,7 +5454,7 @@
       "include/grpc/support/sync.h", 
       "include/grpc/support/sync_generic.h", 
       "include/grpc/support/sync_posix.h", 
-      "include/grpc/support/sync_win32.h", 
+      "include/grpc/support/sync_windows.h", 
       "include/grpc/support/thd.h", 
       "include/grpc/support/time.h", 
       "include/grpc/support/tls.h", 
@@ -5478,7 +5478,7 @@
       "src/core/lib/support/env.h", 
       "src/core/lib/support/env_linux.c", 
       "src/core/lib/support/env_posix.c", 
-      "src/core/lib/support/env_win32.c", 
+      "src/core/lib/support/env_windows.c", 
       "src/core/lib/support/histogram.c", 
       "src/core/lib/support/host_port.c", 
       "src/core/lib/support/load_file.c", 
@@ -5487,7 +5487,7 @@
       "src/core/lib/support/log_android.c", 
       "src/core/lib/support/log_linux.c", 
       "src/core/lib/support/log_posix.c", 
-      "src/core/lib/support/log_win32.c", 
+      "src/core/lib/support/log_windows.c", 
       "src/core/lib/support/murmur_hash.c", 
       "src/core/lib/support/murmur_hash.h", 
       "src/core/lib/support/slice.c", 
@@ -5497,26 +5497,26 @@
       "src/core/lib/support/string.c", 
       "src/core/lib/support/string.h", 
       "src/core/lib/support/string_posix.c", 
-      "src/core/lib/support/string_win32.c", 
-      "src/core/lib/support/string_win32.h", 
+      "src/core/lib/support/string_windows.c", 
+      "src/core/lib/support/string_windows.h", 
       "src/core/lib/support/subprocess_posix.c", 
       "src/core/lib/support/subprocess_windows.c", 
       "src/core/lib/support/sync.c", 
       "src/core/lib/support/sync_posix.c", 
-      "src/core/lib/support/sync_win32.c", 
+      "src/core/lib/support/sync_windows.c", 
       "src/core/lib/support/thd.c", 
       "src/core/lib/support/thd_internal.h", 
       "src/core/lib/support/thd_posix.c", 
-      "src/core/lib/support/thd_win32.c", 
+      "src/core/lib/support/thd_windows.c", 
       "src/core/lib/support/time.c", 
       "src/core/lib/support/time_posix.c", 
       "src/core/lib/support/time_precise.c", 
       "src/core/lib/support/time_precise.h", 
-      "src/core/lib/support/time_win32.c", 
+      "src/core/lib/support/time_windows.c", 
       "src/core/lib/support/tls_pthread.c", 
       "src/core/lib/support/tmpfile.h", 
       "src/core/lib/support/tmpfile_posix.c", 
-      "src/core/lib/support/tmpfile_win32.c", 
+      "src/core/lib/support/tmpfile_windows.c", 
       "src/core/lib/support/wrap_memcpy.c"
     ], 
     "third_party": false, 
@@ -5529,7 +5529,7 @@
       "include/grpc/impl/codegen/atm.h", 
       "include/grpc/impl/codegen/atm_gcc_atomic.h", 
       "include/grpc/impl/codegen/atm_gcc_sync.h", 
-      "include/grpc/impl/codegen/atm_win32.h", 
+      "include/grpc/impl/codegen/atm_windows.h", 
       "include/grpc/impl/codegen/log.h", 
       "include/grpc/impl/codegen/port_platform.h", 
       "include/grpc/impl/codegen/slice.h", 
@@ -5537,7 +5537,7 @@
       "include/grpc/impl/codegen/sync.h", 
       "include/grpc/impl/codegen/sync_generic.h", 
       "include/grpc/impl/codegen/sync_posix.h", 
-      "include/grpc/impl/codegen/sync_win32.h", 
+      "include/grpc/impl/codegen/sync_windows.h", 
       "include/grpc/impl/codegen/time.h"
     ], 
     "language": "c", 
@@ -5547,7 +5547,7 @@
       "include/grpc/impl/codegen/atm.h", 
       "include/grpc/impl/codegen/atm_gcc_atomic.h", 
       "include/grpc/impl/codegen/atm_gcc_sync.h", 
-      "include/grpc/impl/codegen/atm_win32.h", 
+      "include/grpc/impl/codegen/atm_windows.h", 
       "include/grpc/impl/codegen/log.h", 
       "include/grpc/impl/codegen/port_platform.h", 
       "include/grpc/impl/codegen/slice.h", 
@@ -5555,7 +5555,7 @@
       "include/grpc/impl/codegen/sync.h", 
       "include/grpc/impl/codegen/sync_generic.h", 
       "include/grpc/impl/codegen/sync_posix.h", 
-      "include/grpc/impl/codegen/sync_win32.h", 
+      "include/grpc/impl/codegen/sync_windows.h", 
       "include/grpc/impl/codegen/time.h"
     ], 
     "third_party": false, 
@@ -5605,7 +5605,7 @@
       "src/core/lib/iomgr/sockaddr.h", 
       "src/core/lib/iomgr/sockaddr_posix.h", 
       "src/core/lib/iomgr/sockaddr_utils.h", 
-      "src/core/lib/iomgr/sockaddr_win32.h", 
+      "src/core/lib/iomgr/sockaddr_windows.h", 
       "src/core/lib/iomgr/socket_utils_posix.h", 
       "src/core/lib/iomgr/socket_windows.h", 
       "src/core/lib/iomgr/tcp_client.h", 
@@ -5717,7 +5717,7 @@
       "src/core/lib/iomgr/sockaddr_posix.h", 
       "src/core/lib/iomgr/sockaddr_utils.c", 
       "src/core/lib/iomgr/sockaddr_utils.h", 
-      "src/core/lib/iomgr/sockaddr_win32.h", 
+      "src/core/lib/iomgr/sockaddr_windows.h", 
       "src/core/lib/iomgr/socket_utils_common_posix.c", 
       "src/core/lib/iomgr/socket_utils_linux.c", 
       "src/core/lib/iomgr/socket_utils_posix.c", 
@@ -6018,7 +6018,7 @@
       "src/core/lib/security/credentials.h", 
       "src/core/lib/security/credentials_metadata.c", 
       "src/core/lib/security/credentials_posix.c", 
-      "src/core/lib/security/credentials_win32.c", 
+      "src/core/lib/security/credentials_windows.c", 
       "src/core/lib/security/google_default_credentials.c", 
       "src/core/lib/security/handshake.c", 
       "src/core/lib/security/handshake.h", 
diff --git a/vsprojects/coapp/openssl/libeay32.vcxproj b/vsprojects/coapp/openssl/libeay32.vcxproj
index ea63162..46ddbde 100644
--- a/vsprojects/coapp/openssl/libeay32.vcxproj
+++ b/vsprojects/coapp/openssl/libeay32.vcxproj
@@ -609,7 +609,7 @@
     <ClCompile Include="$(OpenSslPath)\crypto\dso\dso_err.c" />
     <ClCompile Include="$(OpenSslPath)\crypto\dso\dso_dlfcn.c" />
     <ClCompile Include="$(OpenSslPath)\crypto\dso\dso_lib.c" />
-    <ClCompile Include="$(OpenSslPath)\crypto\dso\dso_win32.c" />
+    <ClCompile Include="$(OpenSslPath)\crypto\dso\dso_windows.c" />
     <ClCompile Include="$(OpenSslPath)\crypto\stack\stack.c" />
     <ClCompile Include="$(OpenSslPath)\crypto\md4\md4_dgst.c" />
     <ClCompile Include="$(OpenSslPath)\crypto\md4\md4_one.c" />
diff --git a/vsprojects/vcxproj/gpr/gpr.vcxproj b/vsprojects/vcxproj/gpr/gpr.vcxproj
index cdb128e..64a943a 100644
--- a/vsprojects/vcxproj/gpr/gpr.vcxproj
+++ b/vsprojects/vcxproj/gpr/gpr.vcxproj
@@ -151,14 +151,14 @@
     <ClInclude Include="$(SolutionDir)\..\include\grpc\support\atm.h" />
     <ClInclude Include="$(SolutionDir)\..\include\grpc\support\atm_gcc_atomic.h" />
     <ClInclude Include="$(SolutionDir)\..\include\grpc\support\atm_gcc_sync.h" />
-    <ClInclude Include="$(SolutionDir)\..\include\grpc\support\atm_win32.h" />
+    <ClInclude Include="$(SolutionDir)\..\include\grpc\support\atm_windows.h" />
     <ClInclude Include="$(SolutionDir)\..\include\grpc\support\avl.h" />
     <ClInclude Include="$(SolutionDir)\..\include\grpc\support\cmdline.h" />
     <ClInclude Include="$(SolutionDir)\..\include\grpc\support\cpu.h" />
     <ClInclude Include="$(SolutionDir)\..\include\grpc\support\histogram.h" />
     <ClInclude Include="$(SolutionDir)\..\include\grpc\support\host_port.h" />
     <ClInclude Include="$(SolutionDir)\..\include\grpc\support\log.h" />
-    <ClInclude Include="$(SolutionDir)\..\include\grpc\support\log_win32.h" />
+    <ClInclude Include="$(SolutionDir)\..\include\grpc\support\log_windows.h" />
     <ClInclude Include="$(SolutionDir)\..\include\grpc\support\port_platform.h" />
     <ClInclude Include="$(SolutionDir)\..\include\grpc\support\slice.h" />
     <ClInclude Include="$(SolutionDir)\..\include\grpc\support\slice_buffer.h" />
@@ -167,7 +167,7 @@
     <ClInclude Include="$(SolutionDir)\..\include\grpc\support\sync.h" />
     <ClInclude Include="$(SolutionDir)\..\include\grpc\support\sync_generic.h" />
     <ClInclude Include="$(SolutionDir)\..\include\grpc\support\sync_posix.h" />
-    <ClInclude Include="$(SolutionDir)\..\include\grpc\support\sync_win32.h" />
+    <ClInclude Include="$(SolutionDir)\..\include\grpc\support\sync_windows.h" />
     <ClInclude Include="$(SolutionDir)\..\include\grpc\support\thd.h" />
     <ClInclude Include="$(SolutionDir)\..\include\grpc\support\time.h" />
     <ClInclude Include="$(SolutionDir)\..\include\grpc\support\tls.h" />
@@ -179,7 +179,7 @@
     <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\atm.h" />
     <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\atm_gcc_atomic.h" />
     <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\atm_gcc_sync.h" />
-    <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\atm_win32.h" />
+    <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\atm_windows.h" />
     <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\log.h" />
     <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\port_platform.h" />
     <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\slice.h" />
@@ -187,7 +187,7 @@
     <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\sync.h" />
     <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\sync_generic.h" />
     <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\sync_posix.h" />
-    <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\sync_win32.h" />
+    <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\sync_windows.h" />
     <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\time.h" />
   </ItemGroup>
   <ItemGroup>
@@ -199,7 +199,7 @@
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\support\murmur_hash.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\support\stack_lockfree.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\support\string.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\lib\support\string_win32.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\lib\support\string_windows.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\support\thd_internal.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\support\time_precise.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\support\tmpfile.h" />
@@ -229,7 +229,7 @@
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\env_posix.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\env_win32.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\env_windows.c">
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\histogram.c">
     </ClCompile>
@@ -245,7 +245,7 @@
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\log_posix.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\log_win32.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\log_windows.c">
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\murmur_hash.c">
     </ClCompile>
@@ -259,7 +259,7 @@
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\string_posix.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\string_win32.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\string_windows.c">
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\subprocess_posix.c">
     </ClCompile>
@@ -269,13 +269,13 @@
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\sync_posix.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\sync_win32.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\sync_windows.c">
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\thd.c">
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\thd_posix.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\thd_win32.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\thd_windows.c">
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\time.c">
     </ClCompile>
@@ -283,13 +283,13 @@
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\time_precise.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\time_win32.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\time_windows.c">
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\tls_pthread.c">
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\tmpfile_posix.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\tmpfile_win32.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\tmpfile_windows.c">
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\wrap_memcpy.c">
     </ClCompile>
diff --git a/vsprojects/vcxproj/gpr/gpr.vcxproj.filters b/vsprojects/vcxproj/gpr/gpr.vcxproj.filters
index 8af6fdd..edafec7 100644
--- a/vsprojects/vcxproj/gpr/gpr.vcxproj.filters
+++ b/vsprojects/vcxproj/gpr/gpr.vcxproj.filters
@@ -37,7 +37,7 @@
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\env_posix.c">
       <Filter>src\core\lib\support</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\env_win32.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\env_windows.c">
       <Filter>src\core\lib\support</Filter>
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\histogram.c">
@@ -61,7 +61,7 @@
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\log_posix.c">
       <Filter>src\core\lib\support</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\log_win32.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\log_windows.c">
       <Filter>src\core\lib\support</Filter>
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\murmur_hash.c">
@@ -82,7 +82,7 @@
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\string_posix.c">
       <Filter>src\core\lib\support</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\string_win32.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\string_windows.c">
       <Filter>src\core\lib\support</Filter>
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\subprocess_posix.c">
@@ -97,7 +97,7 @@
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\sync_posix.c">
       <Filter>src\core\lib\support</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\sync_win32.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\sync_windows.c">
       <Filter>src\core\lib\support</Filter>
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\thd.c">
@@ -106,7 +106,7 @@
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\thd_posix.c">
       <Filter>src\core\lib\support</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\thd_win32.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\thd_windows.c">
       <Filter>src\core\lib\support</Filter>
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\time.c">
@@ -118,7 +118,7 @@
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\time_precise.c">
       <Filter>src\core\lib\support</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\time_win32.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\time_windows.c">
       <Filter>src\core\lib\support</Filter>
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\tls_pthread.c">
@@ -127,7 +127,7 @@
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\tmpfile_posix.c">
       <Filter>src\core\lib\support</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\tmpfile_win32.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\tmpfile_windows.c">
       <Filter>src\core\lib\support</Filter>
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\wrap_memcpy.c">
@@ -147,7 +147,7 @@
     <ClInclude Include="$(SolutionDir)\..\include\grpc\support\atm_gcc_sync.h">
       <Filter>include\grpc\support</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\include\grpc\support\atm_win32.h">
+    <ClInclude Include="$(SolutionDir)\..\include\grpc\support\atm_windows.h">
       <Filter>include\grpc\support</Filter>
     </ClInclude>
     <ClInclude Include="$(SolutionDir)\..\include\grpc\support\avl.h">
@@ -168,7 +168,7 @@
     <ClInclude Include="$(SolutionDir)\..\include\grpc\support\log.h">
       <Filter>include\grpc\support</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\include\grpc\support\log_win32.h">
+    <ClInclude Include="$(SolutionDir)\..\include\grpc\support\log_windows.h">
       <Filter>include\grpc\support</Filter>
     </ClInclude>
     <ClInclude Include="$(SolutionDir)\..\include\grpc\support\port_platform.h">
@@ -195,7 +195,7 @@
     <ClInclude Include="$(SolutionDir)\..\include\grpc\support\sync_posix.h">
       <Filter>include\grpc\support</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\include\grpc\support\sync_win32.h">
+    <ClInclude Include="$(SolutionDir)\..\include\grpc\support\sync_windows.h">
       <Filter>include\grpc\support</Filter>
     </ClInclude>
     <ClInclude Include="$(SolutionDir)\..\include\grpc\support\thd.h">
@@ -231,7 +231,7 @@
     <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\atm_gcc_sync.h">
       <Filter>include\grpc\impl\codegen</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\atm_win32.h">
+    <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\atm_windows.h">
       <Filter>include\grpc\impl\codegen</Filter>
     </ClInclude>
     <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\log.h">
@@ -255,7 +255,7 @@
     <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\sync_posix.h">
       <Filter>include\grpc\impl\codegen</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\sync_win32.h">
+    <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\sync_windows.h">
       <Filter>include\grpc\impl\codegen</Filter>
     </ClInclude>
     <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\time.h">
@@ -287,7 +287,7 @@
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\support\string.h">
       <Filter>src\core\lib\support</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\lib\support\string_win32.h">
+    <ClInclude Include="$(SolutionDir)\..\src\core\lib\support\string_windows.h">
       <Filter>src\core\lib\support</Filter>
     </ClInclude>
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\support\thd_internal.h">
diff --git a/vsprojects/vcxproj/grpc++/grpc++.vcxproj b/vsprojects/vcxproj/grpc++/grpc++.vcxproj
index 29cab37..0a2deef 100644
--- a/vsprojects/vcxproj/grpc++/grpc++.vcxproj
+++ b/vsprojects/vcxproj/grpc++/grpc++.vcxproj
@@ -340,7 +340,7 @@
     <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\atm.h" />
     <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\atm_gcc_atomic.h" />
     <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\atm_gcc_sync.h" />
-    <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\atm_win32.h" />
+    <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\atm_windows.h" />
     <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\log.h" />
     <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\port_platform.h" />
     <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\slice.h" />
@@ -348,7 +348,7 @@
     <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\sync.h" />
     <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\sync_generic.h" />
     <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\sync_posix.h" />
-    <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\sync_win32.h" />
+    <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\sync_windows.h" />
     <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\time.h" />
     <ClInclude Include="$(SolutionDir)\..\include\grpc++\impl\codegen\config.h" />
     <ClInclude Include="$(SolutionDir)\..\include\grpc++\impl\codegen\config_protobuf.h" />
diff --git a/vsprojects/vcxproj/grpc++/grpc++.vcxproj.filters b/vsprojects/vcxproj/grpc++/grpc++.vcxproj.filters
index 15e2807..80a9263 100644
--- a/vsprojects/vcxproj/grpc++/grpc++.vcxproj.filters
+++ b/vsprojects/vcxproj/grpc++/grpc++.vcxproj.filters
@@ -342,7 +342,7 @@
     <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\atm_gcc_sync.h">
       <Filter>include\grpc\impl\codegen</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\atm_win32.h">
+    <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\atm_windows.h">
       <Filter>include\grpc\impl\codegen</Filter>
     </ClInclude>
     <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\log.h">
@@ -366,7 +366,7 @@
     <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\sync_posix.h">
       <Filter>include\grpc\impl\codegen</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\sync_win32.h">
+    <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\sync_windows.h">
       <Filter>include\grpc\impl\codegen</Filter>
     </ClInclude>
     <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\time.h">
diff --git a/vsprojects/vcxproj/grpc++_unsecure/grpc++_unsecure.vcxproj b/vsprojects/vcxproj/grpc++_unsecure/grpc++_unsecure.vcxproj
index fcda361..9189985 100644
--- a/vsprojects/vcxproj/grpc++_unsecure/grpc++_unsecure.vcxproj
+++ b/vsprojects/vcxproj/grpc++_unsecure/grpc++_unsecure.vcxproj
@@ -340,7 +340,7 @@
     <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\atm.h" />
     <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\atm_gcc_atomic.h" />
     <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\atm_gcc_sync.h" />
-    <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\atm_win32.h" />
+    <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\atm_windows.h" />
     <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\log.h" />
     <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\port_platform.h" />
     <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\slice.h" />
@@ -348,7 +348,7 @@
     <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\sync.h" />
     <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\sync_generic.h" />
     <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\sync_posix.h" />
-    <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\sync_win32.h" />
+    <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\sync_windows.h" />
     <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\time.h" />
     <ClInclude Include="$(SolutionDir)\..\include\grpc++\impl\codegen\config.h" />
     <ClInclude Include="$(SolutionDir)\..\include\grpc++\impl\codegen\config_protobuf.h" />
diff --git a/vsprojects/vcxproj/grpc++_unsecure/grpc++_unsecure.vcxproj.filters b/vsprojects/vcxproj/grpc++_unsecure/grpc++_unsecure.vcxproj.filters
index 1dc95f9..bce49a0 100644
--- a/vsprojects/vcxproj/grpc++_unsecure/grpc++_unsecure.vcxproj.filters
+++ b/vsprojects/vcxproj/grpc++_unsecure/grpc++_unsecure.vcxproj.filters
@@ -327,7 +327,7 @@
     <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\atm_gcc_sync.h">
       <Filter>include\grpc\impl\codegen</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\atm_win32.h">
+    <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\atm_windows.h">
       <Filter>include\grpc\impl\codegen</Filter>
     </ClInclude>
     <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\log.h">
@@ -351,7 +351,7 @@
     <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\sync_posix.h">
       <Filter>include\grpc\impl\codegen</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\sync_win32.h">
+    <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\sync_windows.h">
       <Filter>include\grpc\impl\codegen</Filter>
     </ClInclude>
     <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\time.h">
diff --git a/vsprojects/vcxproj/grpc/grpc.vcxproj b/vsprojects/vcxproj/grpc/grpc.vcxproj
index 4eec05a..40db381 100644
--- a/vsprojects/vcxproj/grpc/grpc.vcxproj
+++ b/vsprojects/vcxproj/grpc/grpc.vcxproj
@@ -282,7 +282,7 @@
     <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\atm.h" />
     <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\atm_gcc_atomic.h" />
     <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\atm_gcc_sync.h" />
-    <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\atm_win32.h" />
+    <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\atm_windows.h" />
     <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\log.h" />
     <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\port_platform.h" />
     <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\slice.h" />
@@ -290,7 +290,7 @@
     <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\sync.h" />
     <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\sync_generic.h" />
     <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\sync_posix.h" />
-    <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\sync_win32.h" />
+    <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\sync_windows.h" />
     <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\time.h" />
     <ClInclude Include="$(SolutionDir)\..\include\grpc\grpc_security.h" />
     <ClInclude Include="$(SolutionDir)\..\include\grpc\grpc_security_constants.h" />
@@ -330,7 +330,7 @@
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\iomgr\sockaddr.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\iomgr\sockaddr_posix.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\iomgr\sockaddr_utils.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\lib\iomgr\sockaddr_win32.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\lib\iomgr\sockaddr_windows.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\iomgr\socket_utils_posix.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\iomgr\socket_windows.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\iomgr\tcp_client.h" />
@@ -657,7 +657,7 @@
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\security\credentials_posix.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\lib\security\credentials_win32.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\security\credentials_windows.c">
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\security\google_default_credentials.c">
     </ClCompile>
diff --git a/vsprojects/vcxproj/grpc/grpc.vcxproj.filters b/vsprojects/vcxproj/grpc/grpc.vcxproj.filters
index 17c88c4..ee34cab 100644
--- a/vsprojects/vcxproj/grpc/grpc.vcxproj.filters
+++ b/vsprojects/vcxproj/grpc/grpc.vcxproj.filters
@@ -334,7 +334,7 @@
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\security\credentials_posix.c">
       <Filter>src\core\lib\security</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\lib\security\credentials_win32.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\security\credentials_windows.c">
       <Filter>src\core\lib\security</Filter>
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\security\google_default_credentials.c">
@@ -543,7 +543,7 @@
     <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\atm_gcc_sync.h">
       <Filter>include\grpc\impl\codegen</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\atm_win32.h">
+    <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\atm_windows.h">
       <Filter>include\grpc\impl\codegen</Filter>
     </ClInclude>
     <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\log.h">
@@ -567,7 +567,7 @@
     <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\sync_posix.h">
       <Filter>include\grpc\impl\codegen</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\sync_win32.h">
+    <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\sync_windows.h">
       <Filter>include\grpc\impl\codegen</Filter>
     </ClInclude>
     <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\time.h">
@@ -683,7 +683,7 @@
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\iomgr\sockaddr_utils.h">
       <Filter>src\core\lib\iomgr</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\lib\iomgr\sockaddr_win32.h">
+    <ClInclude Include="$(SolutionDir)\..\src\core\lib\iomgr\sockaddr_windows.h">
       <Filter>src\core\lib\iomgr</Filter>
     </ClInclude>
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\iomgr\socket_utils_posix.h">
diff --git a/vsprojects/vcxproj/grpc_unsecure/grpc_unsecure.vcxproj b/vsprojects/vcxproj/grpc_unsecure/grpc_unsecure.vcxproj
index 26050dc..46a8c78 100644
--- a/vsprojects/vcxproj/grpc_unsecure/grpc_unsecure.vcxproj
+++ b/vsprojects/vcxproj/grpc_unsecure/grpc_unsecure.vcxproj
@@ -273,7 +273,7 @@
     <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\atm.h" />
     <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\atm_gcc_atomic.h" />
     <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\atm_gcc_sync.h" />
-    <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\atm_win32.h" />
+    <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\atm_windows.h" />
     <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\log.h" />
     <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\port_platform.h" />
     <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\slice.h" />
@@ -281,7 +281,7 @@
     <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\sync.h" />
     <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\sync_generic.h" />
     <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\sync_posix.h" />
-    <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\sync_win32.h" />
+    <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\sync_windows.h" />
     <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\time.h" />
     <ClInclude Include="$(SolutionDir)\..\include\grpc\census.h" />
   </ItemGroup>
@@ -319,7 +319,7 @@
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\iomgr\sockaddr.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\iomgr\sockaddr_posix.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\iomgr\sockaddr_utils.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\lib\iomgr\sockaddr_win32.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\lib\iomgr\sockaddr_windows.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\iomgr\socket_utils_posix.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\iomgr\socket_windows.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\iomgr\tcp_client.h" />
diff --git a/vsprojects/vcxproj/grpc_unsecure/grpc_unsecure.vcxproj.filters b/vsprojects/vcxproj/grpc_unsecure/grpc_unsecure.vcxproj.filters
index a4acf51..f1e01f6 100644
--- a/vsprojects/vcxproj/grpc_unsecure/grpc_unsecure.vcxproj.filters
+++ b/vsprojects/vcxproj/grpc_unsecure/grpc_unsecure.vcxproj.filters
@@ -483,7 +483,7 @@
     <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\atm_gcc_sync.h">
       <Filter>include\grpc\impl\codegen</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\atm_win32.h">
+    <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\atm_windows.h">
       <Filter>include\grpc\impl\codegen</Filter>
     </ClInclude>
     <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\log.h">
@@ -507,7 +507,7 @@
     <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\sync_posix.h">
       <Filter>include\grpc\impl\codegen</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\sync_win32.h">
+    <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\sync_windows.h">
       <Filter>include\grpc\impl\codegen</Filter>
     </ClInclude>
     <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\time.h">
@@ -617,7 +617,7 @@
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\iomgr\sockaddr_utils.h">
       <Filter>src\core\lib\iomgr</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\lib\iomgr\sockaddr_win32.h">
+    <ClInclude Include="$(SolutionDir)\..\src\core\lib\iomgr\sockaddr_windows.h">
       <Filter>src\core\lib\iomgr</Filter>
     </ClInclude>
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\iomgr\socket_utils_posix.h">
diff --git a/vsprojects/vcxproj/test/codegen_test_full/codegen_test_full.vcxproj b/vsprojects/vcxproj/test/codegen_test_full/codegen_test_full.vcxproj
index cd0b40c..cce3961 100644
--- a/vsprojects/vcxproj/test/codegen_test_full/codegen_test_full.vcxproj
+++ b/vsprojects/vcxproj/test/codegen_test_full/codegen_test_full.vcxproj
@@ -200,7 +200,7 @@
     <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\atm.h" />
     <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\atm_gcc_atomic.h" />
     <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\atm_gcc_sync.h" />
-    <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\atm_win32.h" />
+    <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\atm_windows.h" />
     <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\log.h" />
     <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\port_platform.h" />
     <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\slice.h" />
@@ -208,7 +208,7 @@
     <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\sync.h" />
     <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\sync_generic.h" />
     <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\sync_posix.h" />
-    <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\sync_win32.h" />
+    <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\sync_windows.h" />
     <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\time.h" />
     <ClInclude Include="$(SolutionDir)\..\include\grpc++\impl\codegen\config.h" />
     <ClInclude Include="$(SolutionDir)\..\include\grpc++\impl\codegen\config_protobuf.h" />
diff --git a/vsprojects/vcxproj/test/codegen_test_full/codegen_test_full.vcxproj.filters b/vsprojects/vcxproj/test/codegen_test_full/codegen_test_full.vcxproj.filters
index 029b8ef..475c439 100644
--- a/vsprojects/vcxproj/test/codegen_test_full/codegen_test_full.vcxproj.filters
+++ b/vsprojects/vcxproj/test/codegen_test_full/codegen_test_full.vcxproj.filters
@@ -147,7 +147,7 @@
     <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\atm_gcc_sync.h">
       <Filter>include\grpc\impl\codegen</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\atm_win32.h">
+    <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\atm_windows.h">
       <Filter>include\grpc\impl\codegen</Filter>
     </ClInclude>
     <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\log.h">
@@ -171,7 +171,7 @@
     <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\sync_posix.h">
       <Filter>include\grpc\impl\codegen</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\sync_win32.h">
+    <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\sync_windows.h">
       <Filter>include\grpc\impl\codegen</Filter>
     </ClInclude>
     <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\time.h">
diff --git a/vsprojects/vcxproj/test/codegen_test_minimal/codegen_test_minimal.vcxproj b/vsprojects/vcxproj/test/codegen_test_minimal/codegen_test_minimal.vcxproj
index 6d138fa..0cae4ff 100644
--- a/vsprojects/vcxproj/test/codegen_test_minimal/codegen_test_minimal.vcxproj
+++ b/vsprojects/vcxproj/test/codegen_test_minimal/codegen_test_minimal.vcxproj
@@ -200,7 +200,7 @@
     <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\atm.h" />
     <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\atm_gcc_atomic.h" />
     <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\atm_gcc_sync.h" />
-    <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\atm_win32.h" />
+    <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\atm_windows.h" />
     <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\log.h" />
     <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\port_platform.h" />
     <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\slice.h" />
@@ -208,7 +208,7 @@
     <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\sync.h" />
     <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\sync_generic.h" />
     <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\sync_posix.h" />
-    <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\sync_win32.h" />
+    <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\sync_windows.h" />
     <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\time.h" />
     <ClInclude Include="$(SolutionDir)\..\include\grpc++\impl\codegen\config.h" />
     <ClInclude Include="$(SolutionDir)\..\include\grpc++\impl\codegen\config_protobuf.h" />
diff --git a/vsprojects/vcxproj/test/codegen_test_minimal/codegen_test_minimal.vcxproj.filters b/vsprojects/vcxproj/test/codegen_test_minimal/codegen_test_minimal.vcxproj.filters
index dc3f0b2..06bad18 100644
--- a/vsprojects/vcxproj/test/codegen_test_minimal/codegen_test_minimal.vcxproj.filters
+++ b/vsprojects/vcxproj/test/codegen_test_minimal/codegen_test_minimal.vcxproj.filters
@@ -147,7 +147,7 @@
     <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\atm_gcc_sync.h">
       <Filter>include\grpc\impl\codegen</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\atm_win32.h">
+    <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\atm_windows.h">
       <Filter>include\grpc\impl\codegen</Filter>
     </ClInclude>
     <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\log.h">
@@ -171,7 +171,7 @@
     <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\sync_posix.h">
       <Filter>include\grpc\impl\codegen</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\sync_win32.h">
+    <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\sync_windows.h">
       <Filter>include\grpc\impl\codegen</Filter>
     </ClInclude>
     <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\time.h">