VDM Sound works on my XP Pro with MUGEN, but it lags the keyboard controls....say like if I pressed Left it would take about 1 second to move left....instead I use Sound FX 2000, which does the same job and does not lag my controls....but I have the trial version that only allows 5 minutes of game to be played before it kicks me off MUGEN, so I'm going to have to hunt around..........