Pre-patched Unofficial Patches
Jedi Knight: Dark Forces II & Mysteries of the Sith (1997-98) by LucasArts
This is a bundle and re-upload of the "Unofficial Patch" executables for Jedi Knight: Dark Forces II and its expansion, Mysteries of the Sith. The unofficial patches improve compatibility with modern Windows, add team chat in multiplayer and are required for some mods (particularly Jedi Knight Enhanced and Jedi Knight Retexture Pack). Most users choosing to play these games on modern Windows will want to use these.
These are the pre-patched versions, meaning that the original executables have already been patched. The CD checks have also been removed. This makes them compatible with digital releases like those from Steam and GOG, which have already been patched to remove CD checks (and, therefore, would cause the the original unofficial patches to either fail or introduce CD checks).
Simply copy the contents of the appropriate included folder to your game folder, overwriting any files. In other words, copy JK.EXE, JK-Extension.dll and the Resource folder from the "Jedi Knight - Dark Forces II" folder and/or JKM.exe from the "Jedi Knight - Mysteries of the Sith" folder to your game folder(s).
The unofficial patches help these games to launch on modern Windows, but there are a host of other issues that you may encounter once the games are running, especially related to 3D acceleration and music. For most users, those issues can be overcome with further file supplementation and tweaking. The following pages aggregate the best solutions for each game:
Most common issues and their usual solutions
* Black screen in either game: Use a DirectDraw wrapper like dgVoodoo 2 according to the following instructions...
* No music in either game: Rename JK.EXE or JKM.EXE to something else (like JediKnight.exe).
* Still no music in either game: Replace the music wrapper according to the following instructions...