first part, secure channel only
diff --git a/vsprojects/vcxproj/grpc/grpc.vcxproj b/vsprojects/vcxproj/grpc/grpc.vcxproj
index dc85131..37645c3 100644
--- a/vsprojects/vcxproj/grpc/grpc.vcxproj
+++ b/vsprojects/vcxproj/grpc/grpc.vcxproj
@@ -279,6 +279,7 @@
     <ClInclude Include="..\..\..\src\core\channel\noop_filter.h" />
     <ClInclude Include="..\..\..\src\core\client_config\client_config.h" />
     <ClInclude Include="..\..\..\src\core\client_config\connector.h" />
+    <ClInclude Include="..\..\..\src\core\client_config\initial_connect_string.h" />
     <ClInclude Include="..\..\..\src\core\client_config\lb_policies\pick_first.h" />
     <ClInclude Include="..\..\..\src\core\client_config\lb_policies\round_robin.h" />
     <ClInclude Include="..\..\..\src\core\client_config\lb_policy.h" />
@@ -451,6 +452,10 @@
     </ClCompile>
     <ClCompile Include="..\..\..\src\core\client_config\connector.c">
     </ClCompile>
+    <ClCompile Include="..\..\..\src\core\client_config\default_initial_connect_string.c">
+    </ClCompile>
+    <ClCompile Include="..\..\..\src\core\client_config\initial_connect_string.c">
+    </ClCompile>
     <ClCompile Include="..\..\..\src\core\client_config\lb_policies\pick_first.c">
     </ClCompile>
     <ClCompile Include="..\..\..\src\core\client_config\lb_policies\round_robin.c">
diff --git a/vsprojects/vcxproj/grpc/grpc.vcxproj.filters b/vsprojects/vcxproj/grpc/grpc.vcxproj.filters
index 66dd86e..82b773e 100644
--- a/vsprojects/vcxproj/grpc/grpc.vcxproj.filters
+++ b/vsprojects/vcxproj/grpc/grpc.vcxproj.filters
@@ -103,6 +103,12 @@
     <ClCompile Include="..\..\..\src\core\client_config\connector.c">
       <Filter>src\core\client_config</Filter>
     </ClCompile>
+    <ClCompile Include="..\..\..\src\core\client_config\default_initial_connect_string.c">
+      <Filter>src\core\client_config</Filter>
+    </ClCompile>
+    <ClCompile Include="..\..\..\src\core\client_config\initial_connect_string.c">
+      <Filter>src\core\client_config</Filter>
+    </ClCompile>
     <ClCompile Include="..\..\..\src\core\client_config\lb_policies\pick_first.c">
       <Filter>src\core\client_config\lb_policies</Filter>
     </ClCompile>
@@ -548,6 +554,9 @@
     <ClInclude Include="..\..\..\src\core\client_config\connector.h">
       <Filter>src\core\client_config</Filter>
     </ClInclude>
+    <ClInclude Include="..\..\..\src\core\client_config\initial_connect_string.h">
+      <Filter>src\core\client_config</Filter>
+    </ClInclude>
     <ClInclude Include="..\..\..\src\core\client_config\lb_policies\pick_first.h">
       <Filter>src\core\client_config\lb_policies</Filter>
     </ClInclude>