>Hi everybody.
>
>What is the simplest way to play a .wav or .mp3 as backround music in an application?
>
>I have created a slideshow app for my wedding pictures and would like, with some programatic stop/play control, to underline the show with music.
>
>since this will be distributed to different counties, i need to assume that we could have this playing on machines with win95 and up.
>
>thank for you help in advance

I think you can do something like this...
? beep(myfile.wav)

If you want to get a little bit fancy you could use the windows media encoder SDK. I've been quite happy with what i've been able to do with it.