diff --git a/PC/config.c b/PC/config.c
index a8f27b8..983255a 100644
--- a/PC/config.c
+++ b/PC/config.c
@@ -61,6 +61,7 @@
 extern void init_codecs_jp(void);
 extern void init_codecs_kr(void);
 extern void init_codecs_tw(void);
+extern void init_subprocess(void);
 
 /* tools/freeze/makeconfig.py marker for additional "extern" */
 /* -- ADDMODULE MARKER 1 -- */
@@ -105,6 +106,8 @@
         {"msvcrt", initmsvcrt},
         {"_locale", init_locale},
 #endif
+	/* XXX Should _subprocess go in a WIN32 block?  not WIN64? */
+	{"_subprocess", init_subprocess},
 
         {"_codecs", init_codecs},
 	{"_weakref", init_weakref},
diff --git a/PCbuild/pythoncore.vcproj b/PCbuild/pythoncore.vcproj
index 59498b3..59bddb3 100644
--- a/PCbuild/pythoncore.vcproj
+++ b/PCbuild/pythoncore.vcproj
@@ -364,6 +364,9 @@
 			RelativePath="..\Modules\_sre.c">
 		</File>
 		<File
+			RelativePath="..\Pc\_subprocess.c">
+		</File>
+		<File
 			RelativePath="..\Modules\_weakref.c">
 			<FileConfiguration
 				Name="Release|Win32">