Although it was not officially supported the original Windows Home Server ( WHS) could be persuaded to run Nvidia XP GPU drivers and then run GPU Folding. This worked well for me since the server was always on and doesn't need to use a graphics card.
I recently upgraded to WHS2011 which is a a 64 bit OS and now that WHS 2011 seems working well for me I thought I would check if I can do the same with this version. Strangely, the Nvidia search function will not run to confirm which drivers to use, so its being blocked or can't recognize the OS. Obviously I can do this manually but I don't want to create any big problems.
I will make a backup of the OS and then try. I have the following options for graphics drivers for my GTX260, Windows 7, Vista, XP, Server 2003 all in 64 bit version. I guess Server 2003 would be a good starting point.
Anyone done this?