I have no idea. I'm currently fighting Win7 to get some old games to run - the best answer I can find is that while some stuff will run in a special loader module available as a download, that only works on the 'expensive business versions' - and doesn't work for any games - and not all programs work, just the ones that MS tried to 'fix'.

To get into compatibility set up mode, - oh bugger, I've forgotten again!... can't see it in Control Panel - think you get to it from a right click on the desktop program startup link - if you created one ....

I can see why MS wants to con us all into using "ClodCloud Computing"...