I have bin some emulators on 2 computers. One is running windows vista 64 en the other is running under winxp media center. -Chankast work on both but some times it hangs in the middle of the game and the gfx ar awfull on vista. Some games wont even start at all oh and the sound well i never herd anything . -Demul run a lot better but it still has some issues like some gfx overlap eechother and there was sound not good but sound. -NullDC is the best emulator i think sinds i patched sonic2 i had no problems almost every game runs properly but there are still some issues. You can use a joystick but you have to use a second program like joy2key to make it work and it wont start automaticly whit a rom file so i cant use GameEx :S.