dear Woffers,
Advice would be appreciated towards problem running SweetFx in WOFF.
After dozen of switching and shifting with d3d8.ini, following instruction, it crash game every time saying "game terminated prematurely". Then I tried to open cfs3config.exe to see whether I can there find something which can help, and I couldn't open that neither, with following note "The procedure entry point Direct3DCreate9Ex could not be located in the dynamic link library d3d9.dll".
I have installed Dx9 from WOFF toolbox folder.
Any idea how to solve this?

You need to disable in game multi-sampling via d3d8.ini (the one in WW1Scenery\shaders not in OBDWW1.... folder).
Read the ini for where.


; Change to NoMultisampling=1 for SweetFX compatibility, but it will disable ingame antialiasing.
NoMultisampling=0



Do NOT run cfs3config - that may screw something all of that is controlled from WOFF.

Maybe better to use reshade, not sure Sweetfx works with it these days, others who use it I am sure will help you.

Also make sure you are running on your Nvidia GPU if a laptop as I am sure the Intel one will barf !

I know for that other d3d8.ini and I disabled MS there also, but something else is wrong.
Didn't knew for that Reshade thing though, which I now have installed and it work just fine.
Polovski thank you for advice, it is much appreciated.

IMHO, as Polovski already stated above, SweetFX is not compatible with the latest versions of WOFF UE. I personally use Reshade since.

after UE 4.18 version sweetFX wont run
From then on its reshade or nothing