Gex: Enter the Gecko 3dfx Support Patch updates Gex: Enter the Gecko videogame adding 3dfx support via Glide APIs. To install this patch, you've to copy manually gex23Dfx.exe file from compressed file named "Gex-Enter-the-Gecko_3dfx_Patch" into Gex: Enter the Gecko directory (e.g. "Program Files\Crystal Dynamics\gex23d"). If you're experiencing still problems with this game, try to update with generic patch included in the compressed file "Gex-Enter-the-Gecko_Generic_Patch".