title: Simple use of WebClient on Windows Phone 7 throws a NetworkError
body: <p>This code works in a WPF app but throws a NetworkException ("server not found") in WP7.  Why the difference?</p>
  
  <pre><code>WebClient client = new WebClient();
  
  client.DownloadStringCompleted += new DownloadStringCompletedEventHandler(Client_DownloadStringCompleted);
  Uri token = new Uri("http://www.bing.com");
  
  client.DownloadStringAsync(token);
  </code></pre>
  
  <p>Update: It looks like running Fiddler while debugging WP7 was the cause.  Fiddler also breaks the browser on the emulator.  Will post if I find a workaround for using Fiddler to debug the emulator.</p>