title: Visual Studio 2015 IIS Express 500 Error
body: <p>I have an ASP.Net website project that I am migrating to .Net 4.6.1 . </p>
  
  <p>I have installed Visual Studio 2015 Community, and I have successfully compiled and built both the website and its component DLL.</p>
  
  <p>When I try to use IIS Express to debug with F5, I get a 500 error...</p>
  
  <p><code>HTTP Error 500.0 - Internal Server Error
  Tracing area "Authentication,Security,Filter,StaticFile,CGI,Compression,Cache,RequestNotifications,Module,FastCGI,Rewrite,RequestRouting" is not recognized</code></p>
  
  <p>That says to me that IIS Express does not have a module installed that I need.  I thought it might be that ARR and URL Rewrite were not installed, so I installed these, no change.</p>
  
  <p>My ApplicationPool in production uses PreWarmCache technology to start up and avoid 'first hit' delays, and do other one-time startup work.  </p>
  
  <p>Help with getting IIS Express to run the site would be very useful.</p>