Nostalrius Begins - Quality wow vanilla realm (1.12)

Hello!
I am still not sure if this is allowed,
Say im on my bank on one client (different account) and scanning the auctionhouse can i play on my other character at the same time? (Leveling)

Hopefully i can get some info on this.

Thanks!

Yeah you can. It's in the FAQs under multiboxing. This is like the only exception to the "2 accounts at the same time" rule.