http://mrhaandi.blogspot.com/p/injectsmaa.html
Aciona o VAC do Steam? Não se sabe, portanto use por conta e risco (de perder a conta e a coleção de BF's).

Sokol1cheesehawk - Steam shouldn't do anything about it, it runs with the game, but doesn't change any files.
I have been using the FXAA files since they were first posted here, probably 3-4 months now?
Never been banned, or warned, and nothing shows up on the VAC list for my account.