Quote Originally Posted by Ualaa View Post
I was under the impression that the game had to be Sandboxed, to run multiple copies on the same PC.
Isboxer fixes this (as I'm sure you know :P) - But also, 2 folders with D3 and launching the game without the patcher (using -launch) will let you run 2 instances on one PC with no sandboxing software things going on.