title: Excel COM Interop - tlbimp vs primary WrapperTool
body: <p>I'm trying to add the ActiveX Microsoft Excel 11.0 Object library to my .NET project. It works fine on my computer, but when I check in my code, it doesn't work on my coworker's. Fixed it on his and it broke mine. When added, the namespaces are different between our machines.</p>
  
  <p>It turns out the difference is that when I add the reference it uses <code>tlbimp</code> as the WrapperTool, but for him it makes it a <code>primary</code> reference.</p>
  
  <p>How do I make it work for both of us the same way? His machine doesn't like a <code>tlbimp</code> imported interop, and mine doesn't like a <code>primary</code> interop.</p>