hooboy lol, trying to be gentle with this reply
the term 2boxing typically doesnt means 2 computers, 2 running systems
it typically involves 2 instances of the
windower running 2 absolutely separate FFXI accounts, not a 'main' and a mule from the same FFXI account
any physically seperate machine is gonna require a separate install CD, the point of 2boxing is to not use 2 separate machines
if you want to play your wife's character at the same time you are SOL, you will need a whole new FFXI account as I'm pretty sure SE cannot extract a mule from your account and give it its own independant account (thus why i have a mule with flee and my brother now has 4 75's on his new character)