[onelifecrisis]

Is it possible to get this to work without using the jar file function?

Yes. Make a shortcut with this command line:

"C:\Program Files\FPS Limiter\FPS_Limiter.exe" /r:OGL /f:30 "C:\Program Files\Ubisoft\IL-2 Sturmovik 1946\il2fb.exe"

And this start-in folder:

"C:\Program Files\FPS Limiter"

Obviously you should change the paths as necessary, but also you shoudl change the 30 to whatever FPS limit you want to use. That shortcut should do the trick.

HTH
OLC