Simplify MSI projects.
diff --git a/Tools/msi/dev/dev_d.wixproj b/Tools/msi/dev/dev_d.wixproj
index 2354d97..b3b0532 100644
--- a/Tools/msi/dev/dev_d.wixproj
+++ b/Tools/msi/dev/dev_d.wixproj
@@ -5,7 +5,15 @@
         <SchemaVersion>2.0</SchemaVersion>
         <OutputName>dev_d</OutputName>
         <OutputType>Package</OutputType>
-        <DefineConstants>IncludeDebugBinaries=1;$(DefineConstants)</DefineConstants>
     </PropertyGroup>
-    <Import Project="dev.props" />
+    <Import Project="..\msi.props" />
+    <ItemGroup>
+        <Compile Include="dev_d.wxs" />
+        <Compile Include="dev_files.wxs" />
+    </ItemGroup>
+    <ItemGroup>
+        <EmbeddedResource Include="*.wxl" />
+    </ItemGroup>
+
+    <Import Project="..\msi.targets" />
 </Project>
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