I just happened to cut and paste for future use..................
Follow all of these instructions to the letter and you can apply SP1.
If you tried to apply the Office XP SP1 patch to your copy of the Corporate
version and keep getting an error message like "Error applying patch to
C:\config.msi\PT121A.tmp" here is what you need to do to successfully apply the
NOTE: I assume your boot drive is C:. Change drive letter if necessary.
I'm using the Office XP with frontpage and encountered the above mentioned problem and managed to resolve with the recommended solution. However I was prompted with Office XP activation and not able to do so as I had did it before. Have any encounter this issue and any solution to it such as disable the activation ??? My OfficeXP now left with 40 times.... Pls help