Theres 2 programs I know of. Onlyers is the only name that comes to mind ATM though. G/L trying to find it on the net, its kinda disapeared from what I could tell. You'd have to find sum1 who still has the program on they're comp.
If you have a new cd key and you have been banned, just uninstall d2 and reinstall it w/ the new keys.