That's still correct. the OEM copy of windows xp and windows 7 can only be used ONCE. If you are a company that refurbishes the machines for resale, you have to put the refurbisher COA sticker on it (along with technically removing the OEM COA).
MS has since gotten... _worse_ in regards to what you can and can not do with the OEM COA keys.
Biting the hand that feeds IT
