Now for each mod that you have installed create a copy of the ddraw.ini file and rename it to match the mod name. This will turn on the ability to run the Fallout2.exe with command line options. Then, open ddraw.ini with a text editor and change the value for 'UseCommandLine' from 0 to 1. Once you have downloaded Sfall, copy both ddraw.dll and ddraw.ini into your Fallout 2 folder. Sfall requires that you have the latest US version of the fallout2.exe which is 1.02, so remember to patch your game first, you can even leave the patch000.dat file there as Sfall will bypass it. The only requirements for this mod is Timeslip's Sfall program and any other requirements that each mod may have.

This also means that you no longer have to remove the patch000.dat from the Fallout 2 folder, in fact you should leave it there as you still play the original vanilla version of Fallout 2. Each mod is completely independent from the other mods and will not affect the default install of Fallout 2. Each mod can be run from its own shortcut in the start menu and will have their own set up savegames and settings. This tutorial will cover how to configure multiple mods so that more than one can be installed at the same time without effecting each other.

How to install fallout mods