Direct3D 9 works on Windows Vista, XP, etc.
Direct3D9Ex and Direct3D 10 only works on Windows Vista.
Since most existing games use Direct3D 9 or earlier, if they worked on XP
they should work on Windows Vista. Of course they may have varying levels of
compability issues due to things other than Direct3D, may have bugs that XP
tolerated will result in the applicatoin being shutdown on Windows Vista, or
may have relied on driver
hacks to function that are not present in the new
SDE, Game Technology Group
This posting is provided "AS IS" with no warranties, and confers no rights.