GUIDE ON HOW TO MULTIPLE ACTIVE MOD DIABLO 2 WITH MULTIPLE INSTALLS
Diablo II stores all of its registration to your system through Registry Keys, so in doing this impossible feat, we will have to modify
the Registry Entries.
this can only be done through regedit.exe
go to taskbar, run > regedit
navigate to [HKEY_CURRENT_USER\SOFTWARE\BLIZZARD ENTERTAINMENT\DIABLO II\]
delete string INSTALL PATH.
(this will allow multiple previous archived installs of d2 to run seperate mods or configurations of d2 LOD apon).
now, navigate to [HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Blizzard Entertainment\Diablo II]
and delete string INSTALL PATH.
this is the two Diablo II Registry entries that control game save path, install path, and anything to store Diablo II to the system.
Doing this will allow diablo to forget its Default Install Path, allowing a fresh new Official Version to be installed.
After you have installed all mods on one directory, and have it fully functioning, do as stated abouve ^^, and download OFFICIAL BNET D2 + LOD.
it will allow u to install fresh 'legitamate' copy of d2 for vanilla online play.
do the steps abouve & you can have another one FOR MODDED PLAY!!
P.S. just incase you want a vanilla install and a modded install, or even multiple modded installs of d2 to run seperately