diff --git a/PC/dl_nt.c b/PC/dl_nt.c
index ae10fb5..c87c51e 100644
--- a/PC/dl_nt.c
+++ b/PC/dl_nt.c
@@ -12,7 +12,12 @@
 #include "windows.h"
 
 #ifdef Py_ENABLE_SHARED
+#ifdef MS_DLL_ID
+// The string is available at build, so fill the buffer immediately
+char dllVersionBuffer[16] = MS_DLL_ID;
+#else
 char dllVersionBuffer[16] = ""; // a private buffer
+#endif
 
 // Python Globals
 HMODULE PyWin_DLLhModule = NULL;
@@ -88,8 +93,11 @@
     {
         case DLL_PROCESS_ATTACH:
             PyWin_DLLhModule = hInst;
+#ifndef MS_DLL_ID
+            // If we have MS_DLL_ID, we don't need to load the string.
             // 1000 is a magic number I picked out of the air.  Could do with a #define, I spose...
             LoadString(hInst, 1000, dllVersionBuffer, sizeof(dllVersionBuffer));
+#endif
 
 #if HAVE_SXS
             // and capture our activation context for use when loading extensions.
diff --git a/PCbuild/pyproject.props b/PCbuild/pyproject.props
index 85aebeb..33570d7 100644
--- a/PCbuild/pyproject.props
+++ b/PCbuild/pyproject.props
@@ -87,7 +87,7 @@
     <WriteLinesToFile File="$(PySourcePath)PC\pythonnt_rc$(PyDebugExt).h" Overwrite="true" Encoding="ascii"
                       Lines='/* This file created by python.props /t:GeneratePythonNtRcH */
 #define FIELD3 $(Field3Value)
-#define MS_DLL_ID "$(PythonMajorVersion).$(PythonMinorVersion)"
+#define MS_DLL_ID "$(SysWinVer)"
 #define PYTHON_DLL_NAME "$(PyDllName).dll"
 ' />
     <ItemGroup>
diff --git a/PCbuild/python.props b/PCbuild/python.props
index 99eebf0..788df56 100644
--- a/PCbuild/python.props
+++ b/PCbuild/python.props
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003" TreatAsLocalProperty="Platform">
   <PropertyGroup>
-    <Platform Condition="'$(Platform)' == ''">Win32</Platform>
+    <Platform Condition="'$(Platform)' == '' or '$(Platform)' == 'x86'">Win32</Platform>
     <Configuration Condition="'$(Configuration)' == ''">Release</Configuration>
     <!--
     Use the latest available version of Visual Studio to build. To override
@@ -100,6 +100,10 @@
     <!-- The version and platform tag to include in .pyd filenames -->
     <PydTag Condition="$(Platform) == 'Win32'">.cp$(MajorVersionNumber)$(MinorVersionNumber)-win32</PydTag>
     <PydTag Condition="$(Platform) == 'x64'">.cp$(MajorVersionNumber)$(MinorVersionNumber)-win_amd64</PydTag>
+    
+    <!-- The version number for sys.winver -->
+    <SysWinVer>$(MajorVersionNumber).$(MinorVersionNumber)</SysWinVer>
+    <SysWinVer Condition="$(Platform) == 'Win32'">$(SysWinVer)-32</SysWinVer>
   </PropertyGroup>
   
   <!-- Displays the calculated version info -->
diff --git a/PCbuild/pythoncore.vcxproj b/PCbuild/pythoncore.vcxproj
index 4ecfd10..479f68d 100644
--- a/PCbuild/pythoncore.vcxproj
+++ b/PCbuild/pythoncore.vcxproj
@@ -67,7 +67,7 @@
     <ClCompile>
       <AdditionalOptions>/Zm200  %(AdditionalOptions)</AdditionalOptions>
       <AdditionalIncludeDirectories>$(PySourcePath)Python;$(PySourcePath)Modules\zlib;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
-      <PreprocessorDefinitions>_USRDLL;Py_BUILD_CORE;Py_ENABLE_SHARED;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>_USRDLL;Py_BUILD_CORE;Py_ENABLE_SHARED;MS_DLL_ID="$(SysWinVer)";%(PreprocessorDefinitions)</PreprocessorDefinitions>
     </ClCompile>
     <Link>
       <AdditionalDependencies>ws2_32.lib;%(AdditionalDependencies)</AdditionalDependencies>
@@ -335,7 +335,6 @@
     <ClCompile Include="..\Parser\tokenizer.c" />
     <ClCompile Include="..\PC\winreg.c" />
     <ClCompile Include="..\PC\config.c" />
-    <ClCompile Include="..\PC\dl_nt.c" />
     <ClCompile Include="..\PC\getpathp.c" />
     <ClCompile Include="..\PC\msvcrtmodule.c" />
     <ClCompile Include="..\Python\pyhash.c" />
@@ -387,13 +386,16 @@
     <ClCompile Include="..\Python\traceback.c" />
   </ItemGroup>
   <ItemGroup>
+    <ClCompile Include="..\PC\dl_nt.c" />
+  </ItemGroup>
+  <ItemGroup>
     <ResourceCompile Include="..\PC\python_nt.rc" />
   </ItemGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
   <ImportGroup Label="ExtensionTargets">
   </ImportGroup>
   
-  <Target Name="_GetBuildInfo" AfterTargets="PrepareForBuild">
+  <Target Name="_GetBuildInfo" BeforeTargets="PrepareForBuild">
     <Exec Command='hg id -b &gt; "$(IntDir)hgbranch.txt"' ContinueOnError="true" />
     <Exec Command='hg id -i &gt; "$(IntDir)hgversion.txt"' ContinueOnError="true" />
     <Exec Command='hg id -t &gt; "$(IntDir)hgtag.txt"' ContinueOnError="true" />