In "C:\Program Files\Factorio" is the experimental version of the game and in "C:\Program Files\Factorio Stable" is the stable version.
The problem is, the directory in %AppData% is always "Factorio", even if the name of the main directory is something else.
If the name of the main directory in "C:\Program Data" would be used for the %AppData% directory, it would be way easier to manage multiple installations.
