<pedant>SB, for the first time in my life, I must disagree with you.
Try installing XP, 2000 and XP pro on the same pc, (tripple boot), and then installing "M$ office" onto one OS. Make a shortcut to the .exe file in the 'other' OS, let's say 'Word' for example, and see what happens.</pedant>
OK, they're all, basically, the same OS, but the three registeries are different. It does work though!
P.S. Works between 98 and ME as well.
Again, sorry to disagree, but I have two working boxes doing this now.