title: ASP.NET Routing - Ignore routes for files with specific extension, regardless of directory
body: <p>Say I want to remove any mapped routes for files with a certain file extension.</p>
  
  <pre><code> RouteTable.Routes.Ignore("{root}.hello");
  </code></pre>
  
  <p>Works for any file that has the extension <code>.hello</code> in the root directory, however as soon as i go into any subfolders the 'ignore' rule isn't applied.</p>
  
  <p>Ive tried lots of different combinations, but can't seem to get one that doesn't throw a compiler exception, or not work?</p>