OK, looks like I'll need to re-install windows then. Thanks for the help everybody.

Am I looking at an ntdll.dll corruption issue? Because the info I've found on how to fix that does not fill me with warm and fuzzy feelings.

This additional logger in FAF. Where does it live? Does it have another name? I can't find it.

The windows event shows an error in the application log.

Faulting application name: SupremeCommander.exe, version: 1.5.0.1, time stamp: 0x4e5c092e
Faulting module name: ntdll.dll, version: 10.0.22621.1928, time stamp: 0x4028fadc
Exception code: 0xc0000005
Fault offset: 0x0007bc3b
Faulting process id: 0x0x3B48
Faulting application start time: 0x0x1D9C06808EEC57B
Faulting application path: C:\Program Files (x86)\Steam\steamapps\common\Supreme Commander Forged Alliance\bin\SupremeCommander.exe
Faulting module path: C:\Windows\SYSTEM32\ntdll.dll
Report Id: 06cae674-4643-44d4-a4e4-6845bb89cda2
Faulting package full name:
Faulting package-relative application ID:

I was referring to "Solutions for common errors number 6" on the forums. Listed here.
https://forum.faforever.com/topic/4256/solutions-for-common-errors-with-the-faf-client-launcher-or-supreme-commander
I have to head off to work in a few minutes, I'll try the FAF additional logger this afternoon, thanks magge!

Sheikah, I can't start SC:FA from Steam at all, I hit the play button and nothing happens. I will check up on directx. SC will run from Steam just fine, but not SC:FA.

I've got a problem very similar to number 6. When I try to start a map I get an error like so.

I've tried uninstalling and re-installing FAF, no dice. I've uninstalled and reinstalled SC:FA, again no dice. I tried uninstalling FAF, cleaning the registry and then re-installing, no dice.
Tried verifying both SC and SC:FA on steam... well, you get the picture. So here I am asking for a bit of assistance.

Anyone out there got an idea as to what is going on? I'm using windows 11 on a computer that's only 6 months old.

Attached game log file for those who understand such things.

game_19545658.log

I can run SC from steam, but not SC:FA.
Cheers guys,
Cafad.