[ikthius]

Yip I did this, I phoned because my win xp that I bought last year was getting put onto a new machine cause the last one blew up. and I phoned them, no questions appart from:
"you are wanting to activate your windows XP?"
yes
"here is your activation code........."

and that was it.

although they do ask for the first 4 or 5 letters/numbers sequence of your product code to verify it is geniune.

ik