Default Playback device

I need a code in visual basic 6 to **change the default playback device in windows xp** from the code, I have two sound cards and I want to change the card of the operating system from visual basic without having to go to the panel control--> audio devices ## Deliverables 1) Complete and fully-functional working program(s) in executable form as well as complete source code of all work done. ## Platform Windows xp