Global mod for STALKER SHoC, intended to recreate a highly atmospheric Zone with highest possible quality, stability of the game, rich gameplay and loyalty to the canons of the Sci-Fi genre. The upcoming 0.6.9.3 version will be soon available. Current version is 0.6.9.2 R2 - you can get it in the downloads section.
This guide will help you to roll back game version from 1.0006 to 1.0005 if you want to install OGSE 0.6.9.2 R2 but have a latest game release.
Posted by KamikaZzeRu on Feb 16th, 2012
1) Download a FULL package of 5th patch for your game version from the official site or other resource. The file named stk-*your_game_version_description*-patch-any-5.exe - it's size around 60 MB.
2) Start Regedit by pressing Win+R, typing "regedit" word without quotes, navigate in registry to the path: HKEY_LOCAL_MACHINE \ SOFTWARE \ GSC Game World \ STALKER-SHOC (for Windows Vista/7/8 x64 version, this path will be HKEY_LOCAL_MACHINE \ SOFTWARE \ Wow6432Node\ GSC Game World \ STALKER-SHOC ), there you find the option named "InstallVers". Its value is must be 1.0006 - change it to the 1.0004
3) Now run the downloaded 5th patch - it will normally patch game to version 5.
4) Now you have proper game version and can start mod installation.