This is stupid why is it located in registry in the first place for.
No thanks! this a registry file , I had a bad experience using a registry save file and brick my whole computer.
Because SR7 wanted to use an engine that wasn't made for this type of game, and can't figure out how to make a simple file that stores progress instead of registry entries (could also be the trash engine).
Open the file in a text editor, see what it is changing. It very clearly shows only modifying the gunsmokegames information.
Randomly adding registry files you download off the internet otherwise is usually a bad thing unless you trust the source. Everyone here is saying it is fine, I've used it multiple times after forgetting to save before rebuilding system, never had an issue.