Microsoft XP license question

[ucvb6]

ok, i want to build a computer for my parents to use in the living room. So i figure this would be a good time to get Win XP. But, can i install it on my parents computer and then one mine without any problems, etc...? do i need to purchase another license or anything?

thanks in advance

 

[Doh!]

If you want to stay legit, you would need to purchase another copy of xp license.