Sorry it took me soooo long to answer the question about the mod... all u have to do to play the regular game is switch the patch back, but you need to save your characters in a file. What I did is I made a 'D2 stuff' file and put the original d2 patch and the original D2 char ('save') file in it and left it on my desktop, then made a new 'save' file for my median chars in the directory then put in the median patch.