title: LaunchFileAsync deactivates the application in Windows phone 8
body: <p>I am opening an image using Launcher, the image is being opened in the photo viewer, but the application gets crashed with ApplicationNotHandledException.</p>
  
  <pre><code>await Windows.System.Launcher.LaunchFileAsync(file);
  </code></pre>
  
  <p>I also added fast app resume option in manifest file and I am using emulator of 512 MB RAM</p>
  
  <p>Is there anything need to be done further?</p>