Now why are you using Vista?
Anyways, after playing a little bit of the game, it's kinda fun. The fact that there's no acceleration is kind of bizzarre, and the first two missions are almost impossible without blindly moving while the title card's still up. It was still pretty fun though.
And I found that thing hidden in the Zone 1 map without even trying.
(A little off-topic note, last time I downloaded Chao World 2, it came with an almost complete save file. Might wanna check that out.)