QA tester on Diablo 2 Expansion here. There was sort of an infamous bug I found on the old D2 Expansion discs that let you bypass securom as well as play as ex

QA tester on Diablo 2 Expansion here. There was sort of an infamous bug I found on the old D2 Expansion discs that let you bypass securom as well as play as expansion characters in non-expansion games using non-expansion discs. In fact, once you put in the D2 Expansion disc, all the configs got copied and if you switched to the regular non-expansion disc you were able to retain all the expansion features for as long as you had your PC on ;)