Note:
You only need to use this if you getting license error mesage when installing SP1.

ok, here is a little guide i wrote for you people...

you have two apps here, one for viewing the installed Windows XP key, and the other one to changeot...


INSTALLATION:

1. Check the installed key with the viewer, so later you'll know you 
successfuly changed it...
2. Run the key changer, follow the instructions you have in a DOS window it opens.
when it opens the Windows Key Changer just enter the country (any country) and click Change
 - you dont need to enter the ID...
Now enter the new key, i personally used the last one listed (VX4XG-8FFCQ-W6Q28-B3VDG-CTX9C),
and you done.
3. Now run the key viewer again to see if the key changed...
if not you probably didnt follow the instructions carefuly :)
so try again
4. Run SP1 and enjoy...