Create a Default Music Player

Hi...

I am working on a Music Player.. and now I am able to play the MP3 Files.

But now I want tht the installer that I will create will make my Music Player as a default for the system and also will be present in the Context Menu of the Windows...

I  tried to add the Music Player in the context menu from the Registry and it worked.. but it just displays the application but doesnt play the File...

 

Can anyone suggest something....???