title: An unexpected DCOM error occurred while trying to automatically attach to the remote web server
body: <p>I've two web sites running on my IIS 7.5. Both on port 80. Since they are both on the same port, I have to stop one to start the other. I am not using the inbuilt cassini server. Debugging works fine when using cassini.</p>
  
  <p>The problem I am facing is that when I try to debug my mvc application (which was created under the second website) I get the error: </p>
  
  <blockquote>
    <p>Unable to start debugging on the web server. An unexpected DCOM error
    occurred while trying to automatically attach to the remote web
    server. Try manually attaching to the remote web server using the
    'Attach To Process' dialog.</p>
  </blockquote>
  
  <p>The web application has windows authentication enabled.  Any ideas?</p>
  
  <p><strong>Additional details</strong> : I'm able to do a "attach to process" and debug it. But cannot debug using <kbd>F5</kbd></p>