Update...Solved.... I was on site yesterday and worked on this issue for another 4 hours before finally figuring it out..... this was a tough nut to crack.. what really puzzled me was when I started installing the client workstations they were getting the same error... ""the keyset is not defined"" whenever they tried to print.... the resolution was close at hand all along @WayneSchulz had the link to Ronnie Aspe's solution above. The difference was that the Windows XP SP2 compatibility was on the mas90\home\pvxwin32.exe program, not on the program icon which is where I looked. I have no idea how pvxwin32.exe compatibility got changed. Iif you click Wayne's link above you will see the KB update from yesterday at the bottom of the thread.