title: robots.txt in ASP.NET MVC app returning 404
body: <p>I've deployed an ASP.NET MVC site with a robots.txt file in the root but when I try and access this url it's returning 404. I have an .xml and a .html file in the root as well and they return valid content.</p>
  
  <p>I'm running this on IIS 6. I've tried adding .txt as "text/plain" to the MIME Types but no luck.</p>
  
  <p>Suggestions?</p>