title: .net 64 bit reference problem
body: <p>On a 32 bit Windows Server 2003 machine I have created a Visual Studio Class Library project and platform target configured to "Any CPU". The project has reference of <code>System.Data</code>.</p>
  
  <p>I changed the platform target to x64, built the project and put the DLL in GAC on a 64 bit machine. The 64 bit machine has both 64 bit and 32 bit versions of <code>System.Data</code>.</p>
  
  <p>In this case, my DLL referes to which <code>System.Data</code> - 32 bit or 64 bit?</p>
  
  <p>Thanks in advance!</p>
  
  <p><strong>Update:</strong> I can see my DLL running in AMD64 bit mode on the 64 bit machine.</p>