title: Debugging with IIS requires deleted reference
body: <p>Windows Ent 7, SP1
  IIS 7.5
  Visual Studio 2013</p>
  
  <p>My task has been to get rid of a third party dependency within a web application. I have re-written the necessary code, deleted all of the references to those dlls and uninstalled the 3rd party software. No references in the web.config, the solution, and zero import/using statements in the code...</p>
  
  <p>When I publish the compiled web application (and access via IIS/port 80), it works. When I debug the web application with IIS Express, it works. When I debug the application with IIS, it fails, requiring one of the deleted references.</p>
  
  <p>I have tried creating a new app pool with no luck. I also deleted all of the asp.net temp files. Any idea why IIS is still looking for an old reference/how to make it stop?</p>