If you are like me and your game stopped starting (nothing launches even though the process Ravenshield.exe starts) then this is the solution for now.

Windows 7 x64 - Rainbow Six 3: Gold (Steam)
Issue: Game not starting with Steam.

Solution 1: Just click the  "DisableShims" file from here and it will work again. http://www.allr6.com/Windows7_LaunchFix_OldGames.zip

Solution 2: Patch the .exe with this one from original game and it will still be playable. http://allr6.com/R63-NOCD-ALLR62017.zip however it seems to not show that you are in game on Steam friends list. But thats not really a big deal.

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If you have suggestions or other solutions please post in #techsupport at the community discord which is https://www.R6CHAT.com

WANT TO PLAY ONLINE COOP/PVP? Just patch the game with the multiplayer patch:

• 2019+ Multiplayer Online Patch: http://allr6.com/discuss/viewtopic.php?id=3
New guns, modern scopes/sights, new terrorists, new maps & more content frequently added!

• Join our Steam group!: https://steamcommunity.com/groups/ALLR6

Cheers!