Windows Media Player does not open
 

When I click on Launch to play a song, Windows Media Player does not appear on my screen, but I can hear the tune. It means I cannot start or stop a song part way through. A WMP window opens when I watch a movie, so why won't it open to play a music file? What can I do to solve the problem?

Thanks Peerless. I unticked the "Use LimeWire MP3 Player" box and Windows Media Player now appears. :)