About Direct X

Direct x will not Downgrade from its current version, so for that part ur
safe.

And for the games part, ur mostly safe, well generally origial games ;)
Virus free and such.. copyed games cant be garantied vira free etc.,. :p

How ewer games arent excaktly harmfull part to vista,
and doubt that most of them ewen will run. The majority of games
are "50/50" chance if they run or not on vista. hehe..

But for those games you listet there, your safe to try ;)
Install and see.

Martin / Eqvaliser