Make the olewoo DLLs dependencies conditional based on MSBuild's bitness because it's built with unamanged C++ and thus cannot be compatible with "Any CPU" so we have to load the right DLLs at the build time for the build task to work correctly. We use an inline build task to get the bitness of the MSBuild process and then set the reference using the output.

Author: bclothier

Rubberduck.Deployment.Build/OleWoo/x32/olewoo.dll

@@ -0,0 +1,3 @@
+<?xml version="1.0" encoding="utf-8"?>
+<configuration>
+<startup><supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.6"/></startup></configuration>

…eployment.Build/OleWoo/olewoo.dll.config …yment.Build/OleWoo/x32/olewoo.dll.configRubberduck.Deployment.Build/OleWoo/olewoo.dll.config renamed to Rubberduck.Deployment.Build/OleWoo/x32/olewoo.dll.config Rubberduck.Deployment.Build/OleWoo/olewoo.dll.config renamed to Rubberduck.Deployment.Build/OleWoo/x32/olewoo.dll.config

@@ -8,6 +8,44 @@
     <AssemblyName>Rubberduck.Deployment.Build</AssemblyName>
   </PropertyGroup>
   <Import Project="..\RubberduckBaseMetaProject.csproj" />
+  <!-- 
+    AssemblyFile="$(MSBuildToolsPath)\Microsoft.Build.Tasks.Core.dll"
+    
+<![CDATA[
+System.IntPtr ptr = System.IntPtr.Zero;
+
+if(System.Runtime.InteropServices.Marshal.SizeOf(ptr) == 8)
+	Bitness = "x64";
+else if(System.Runtime.InteropServices.Marshal.SizeOf(ptr) == 4)
+	Bitness = "x32";
+else
+	Bitness = "Unknown";
+]]>    
+  -->
+  <UsingTask
+    TaskName="GetMSBuildBitness"
+    TaskFactory="CodeTaskFactory"
+    AssemblyFile="$(MSBuildToolsPath)\Microsoft.Build.Tasks.Core.dll" >
+    <ParameterGroup>
+      <Bitness ParameterType="System.String" Output="true" />
+    </ParameterGroup>
+    <Task>
+      <Using Namespace="System" />
+      <Using Namespace="System.Runtime.InteropServices" />
+      <Code Type="Fragment" Language="cs">
+        <![CDATA[
+IntPtr ptr = IntPtr.Zero;
+
+if(Marshal.SizeOf(ptr) == 8)
+	Bitness = "x64";
+else if(Marshal.SizeOf(ptr) == 4)
+	Bitness = "x32";
+else
+	Bitness = "Unknown";
+]]>        
+      </Code>
+    </Task>
+  </UsingTask>
   <ItemGroup>
     <Reference Include="Microsoft.Build.Framework" />
     <Reference Include="Microsoft.Build.Tasks.v4.0" />
@@ -17,11 +55,22 @@
     <Reference Include="Microsoft.VisualStudio.Setup.Configuration.Interop">
       <HintPath>VisualStudioSetup\Microsoft.VisualStudio.Setup.Configuration.Interop.dll</HintPath>
     </Reference>
+  </ItemGroup>
+  <Target Name="PreBuildTask" BeforeTargets="PreBuildEvent">
+    <GetMSBuildBitness>
+      <Output PropertyName="MSBuildBitness" TaskParameter="Bitness" />
+    </GetMSBuildBitness>
+  </Target>
+  <ItemGroup>
     <Reference Include="olewoo">
-      <HintPath>OleWoo\olewoo.dll</HintPath>
+      <HintPath>OleWoo\$(MSBuildBitness)\olewoo.dll</HintPath>
     </Reference>
     <Reference Include="olewoo_interop">
-      <HintPath>OleWoo\olewoo_interop.dll</HintPath>
+      <HintPath>OleWoo\$(MSBuildBitness)\olewoo_interop.dll</HintPath>
     </Reference>
   </ItemGroup>
+  <ItemGroup>
+    <Folder Include="OleWoo\x64\" />
+    <Folder Include="OleWoo\x32\" />
+  </ItemGroup>
 </Project>