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. PS. Of course, if you want to use gldirect, copy its opengl32.dll to the game directory and rename to 3dfxgl.dll, or write in console opengl32.dll. Both method should work, but generally putting opengl32.dll won't require any game config/console changes.