title: How do I troubleshoot "Unable to load DLL..."?
body: <p>I deployed an update to my ASP.NET application and started seeing this error on my page that used foo.dll:</p>
  
  <blockquote>
    <p>Unable to load foo.dll. The specified
    module could not be found. (Exception
    from HRESULT: 0x8007007E)</p>
  </blockquote>
  
  <p>foo.dll is in my system32 and application bin directory (which are in the path environment variable). </p>
  
  <p>What gives?</p>