Simplify MSI projects.
diff --git a/Tools/msi/test/test.wixproj b/Tools/msi/test/test.wixproj
index d747cc0..8347e3f 100644
--- a/Tools/msi/test/test.wixproj
+++ b/Tools/msi/test/test.wixproj
@@ -5,7 +5,25 @@
         <SchemaVersion>2.0</SchemaVersion>
         <OutputName>test</OutputName>
         <OutputType>Package</OutputType>
-        <DefineConstants>IncludeDefaultFeature=1;$(DefineConstants)</DefineConstants>
     </PropertyGroup>
-    <Import Project="test.props" />
+    <Import Project="..\msi.props" />
+    <ItemGroup>
+        <Compile Include="test.wxs" />
+        <Compile Include="test_files.wxs" />
+    </ItemGroup>
+    <ItemGroup>
+        <EmbeddedResource Include="*.wxl" />
+    </ItemGroup>
+    <ItemGroup>
+        <InstallFiles Include="$(PySourcePath)Lib\test\**\*"
+                      Exclude="$(PySourcePath)Lib\**\*.pyc;$(PySourcePath)Lib\**\*.pyo">
+            <SourceBase>$(PySourcePath)</SourceBase>
+            <Source>!(bindpath.src)</Source>
+            <TargetBase>$(PySourcePath)</TargetBase>
+            <Target_></Target_>
+            <Group>test_py</Group>
+        </InstallFiles>
+    </ItemGroup>
+    
+    <Import Project="..\msi.targets" />
 </Project>
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