Alright, let's call my account "roflz".
I baught BC and installed it, while logged in under "roflz". So I'm guessing, "roflz" is 'upgraded' to BC.
So if my friend comes over, on his 'normal' account, and tries to play WoW on my comp and go to a BC area, can he go or not?
Is my copy of Burning Crusade only good for that one account; or what?