Since I did not install any of the beta versions of the SP1 how come I get the "only for testing purposes" message on my desktop.
By the way I have Win XP Corp (not sure which version) installed and I installed only the final SP1 (xpsp1_en_x86.exe, Size: 133MB or 140,443,648. File version: 1.16.121.0 with a time stamp of Thursday August 29, 2002 7:59:30 PM)

Did you have any of the Windows Media Player 9 beta's on yer system? I've heard this may cause it. ...griz ;)

Thanks, now that you mention it I now realize that the "only for testing purposes" message showed up only after I installed the newly leaked Windows Media Player 9 build 9.00.00.2848
Also of note is the fact that the message did not display with the official Microsoft beta of Windows Media Player 9. It is only after I upgraded to the non official leaked beta build that the message showed up.