GUIDE ON HOW TO MULTIPLE ACTIVE MOD DIABLO 2 WITH MULTIPLE INSTALLS
How do you open multiple instances of the client? QUESTION I did it before 2.2.0 with a shortcut and the -launch parameter, but now it simply says 'Diablo III was unable to. Available for PC and Mac. The expansion to Diablo II adds a host of new features to the game, including two new playable classes – the shapeshifting Druid and the cunning Assassin. Explore the snowy homeland of the Barbarians, face fiendish new monsters, and arm yourself with thousands of new weapons, armor, and magical items in the fight.

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_USERSOFTWAREBLIZZARD ENTERTAINMENTDIABLO 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_MACHINESOFTWAREWow6432NodeBlizzard EntertainmentDiablo 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.
Now,
After you have installed all mods on one directory, and have it fully functioning, do as stated abouve ^^, and download OFFICIAL BNET D2 + LOD.
from BATTLE.NET
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!!
ENJOY!!
P.S. just incase you want a vanilla install and a modded install, or even multiple modded installs of d2 to run seperately
Diablo 2
WORKS INFINITELY!!
Diablo 2 Mac Game Client Free
-sw33tsp0t