Not sure. I initially had some stability issues with KOTOR 1, but they went away when I followed the initial advice in this thread.
As to KOTOR 2... seems to me that right now the people with the technical nohow to answer my question haven't been on in a while. I'm seriously debating just hooking up my old desktop that has XP and just using it to run the game. I just hope that a year or so in storage hasn't made anything in it go bad.