title: IIS 6.0 suddenly shows directory listing instead of MVC 3 app
body: <p>Over night an (internal, luckily) MVC web application has stopped working for me, without anything being changed as far as I know. The application itself absolutely hasn't been tinkered with in the last two days and the same goes for IIS.</p>
  
  <p>The problem is that I get a directory listing of my www-folder instead of the applications default action (<code>/Home/Index</code>).</p>
  
  <p>My www-folder contains the standard stuff:</p>
  
  <pre><code>bin
  Content
  Scripts
  Views
  Global.asax
  Web.config
  </code></pre>
  
  <p>I have tried:</p>
  
  <ul>
  <li>setting a "Specific Page" as Start Action but it doesn't solve the problem.</li>
  <li>restarting the web page in IIS</li>
  <li>enable/disabled "default content page" in IIS. Doesn't help, but IIS does pick up on a Default.html if I place it in the www-folder.</li>
  </ul>
  
  <p>Now, this has happened once before. At the time I was on vacation and it was solved by restarting the entire World Wide Web Publishing Service. While it might work this time as well, I'd rather figure out the root of the problem before temporarily fixing it just to have it happen again further down the road. So while a WWW Publishing Service restart might get the site running again I'd rather understand why it happened in the first place before fixing it this way.</p>
  
  <p>Finally, note that I'm running other MVC apps on the same IIS server and have never gotten this problem with them.</p>