Yes, as always, Mike is correct. However, the CD is labeled (Windows 2003 Server). I am running VC 6.0 on XP and since I installed this PSDK I have problems with MFC assertions. In about 50% of the time when assertion fails XP gets into the act and wants to send "serious problem " message to MS and VC does not stop properly. Needless to say - it makes development harder. Happy festivus to all. Vaclav