How to find product key of windows xp on another cd from which i have not yet installed xp as i have

I have a cd named HCL Recovery CD Which is used to install windows XP Pro , but i have lost its product key , Pls tell me any Way or Software or Trick to find it , as i have only installed windows xp from it Only Once . At present i m running Windows XP Home. Pls Make it Urgent.

Thanks.

How to find product key of windows xp on another cd from which i have not yet installed xp as i have Lost it.?windows media

Try running this on the PC with XP installed:

http://www.mvps.org/marksxp/WindowsXP/pr...