windows xp product key

[astec]

i have a windows xp cd that i won in a raffle at a computer fair and i have never used it. now i want to i cant find the product key.i am building a pc and i have started to set up windows xp using this cd is there any way i can use my other pc to get the code as i own the cd legitimately and i just cant find where the safe place where i put the key (so safe i cant find it now).can i use my other pc to get the code back or do i have to go out and get another copy of windows.

[Geekgirl]

Hey astec

You can purchase just a

[Restek]