Is it possible to change the game resolution without using Config.exe, as on my second PC, the config.exe crashes when I try to save, and doesn't work when I use "Run as Administrator".

Is there a text file of some kind or a .cfg file I can edit to adjust the resolution? I am stuck playing in a tiny window and due to no ingame option to adjust the resolution ingame, it's not possible to increase it

Any help here would be much appreciated.

Thank you.