--- a/PCbuild/_bz2.vcxproj	Sat Jun 09 17:31:59 2012 +0100
+++ b/PCbuild/_bz2.vcxproj	Mon May 21 23:01:17 2012 -0400
@@ -148,6 +148,12 @@
     <CodeAnalysisRuleSet Condition="'$(Configuration)|$(Platform)'=='Release|x64'">AllRules.ruleset</CodeAnalysisRuleSet>
     <CodeAnalysisRules Condition="'$(Configuration)|$(Platform)'=='Release|x64'" />
     <CodeAnalysisRuleAssemblies Condition="'$(Configuration)|$(Platform)'=='Release|x64'" />
+    <TargetExt Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">.pyd</TargetExt>
+    <TargetExt Condition="'$(Configuration)|$(Platform)'=='Release|x64'">.pyd</TargetExt>
+    <TargetExt Condition="'$(Configuration)|$(Platform)'=='PGUpdate|x64'">.pyd</TargetExt>
+    <TargetExt Condition="'$(Configuration)|$(Platform)'=='PGUpdate|Win32'">.pyd</TargetExt>
+    <TargetExt Condition="'$(Configuration)|$(Platform)'=='PGInstrument|Win32'">.pyd</TargetExt>
+    <TargetExt Condition="'$(Configuration)|$(Platform)'=='PGInstrument|x64'">.pyd</TargetExt>
   </PropertyGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
     <ClCompile>