title: Error in App Metro with DevDefined.OAuth
body: <p>I am developing an app metro for windows 8. I use DevDefined.Oauth for authenticate but gives the following error:</p>
  
  <blockquote>
    <p>Could not load file or assembly 'System.Web, Version=2.0.0.0,
    Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a' or one of its
    dependencies. The system can not find the file specified.</p>
  </blockquote>