title: The extension name 'webHttp' is not registered in the collection at system.serviceModel/extensions/behaviorExtensions
body: <p>I am Hosting REST service in IIS 6.1. The following error I am getting. </p>
  
  <pre><code>The extension name 'webHttp' is not registered in the collection at system.serviceModel/extensions/behaviorExtensions
  </code></pre>
  
  <p>what would be a fix for this?</p>