Topic on Talk:Medal of Honor: Allied Assault
Well, the command itself works, but for me, it was this way (written in console): seta r_gldriver "3dfxgl.dll"
And I doubt it will work with stock library attached. I used glidirect wrapper (it was on purpose of Reshade 1/2).
The contribution you mentioned was not made by me. Although I had Origin version and it's possible that it will disable the overlay permanently anyway. Although, glidirect will introduce performance overlay on weak CPUs and some graphical changes, so I doubt it's worth it.