I have a VB3 (or VB4) application which uploads samples to my hardware sampler over MIDI. But it doesn't work on XP, only 95/98. So there's a counter example to

I have a VB3 (or VB4) application which uploads samples to my hardware sampler over MIDI. But it doesn't work on XP, only 95/98. So there's a counter example to it being totally backward compatible.