title: failed to unregister w3wp when running codecoverage tool from Visual Studio 2012 on release bits
body: <p>I am getting the following warning logged in the event viewer when I run code coverage tool that comes with Visual Studio 2012 SP1 (<code>&lt;VS folder&gt;\Team Tools\Dynamic Code Coverage</code>) and as a result the output .coverage file does not contain any coverage data:</p>
  
  <blockquote>
    <p>Failed to unregister 'w3wp.exe', this process will be launched using
    DEBUG_PROCESS flag. The behavior of application might be different.</p>
  </blockquote>
  
  <p>The command I run from cmd line (with Administrator rights) is:
  codecoverage collect /IIS /session:test /output:myfile.coverage</p>
  
  <p>I would also like to point out that I do have the .pdb files in the same folder as all the bianries (I know .pdb files are needed for dlls instrumentation step)</p>
  
  <p>I reproed this on both Widows Server  2008 R2 with IIS 7 and Windows Server 2012 with IIS 8, so I don't since it's smth config/environment specific, but I might be wrong.</p>
  
  <p>Any ideas?</p>