title: windows 8 Launch the default media player for metro style application
body: <p>I have hosted a video file (uri=http://testserver/test.mp4) in the webserver and i want to load the file in the default media player in the through my metro style application. i have tried the 
  Windows.System.Launcher.LaunchURIAsyc(uri),
  since the protocol used is http,  the  file loads in the IE.
  i am looking for something analogous to MediaPlayerLauncher for Wp7</p>