diablo 2 just diablo 2

[KISS_FxP]

ok, about a year ago, my buddy picked up diablo 2
he copied it, and we played.

i came to came copy world, to look for a way for us to both play, at the same time, without haveing to use the original cd to ####t the game.
i found a scsi daemon, that popped a grean demon face into my system tray, and added a virtual cd rom, and a virtual scsi adapter.
i was able to use my copied disk to access battle net, and NEVER had to replace the original exe.
anyone still got this program?
i have bought the game myself, and have a backup, and want to play it.