To create an autoexec.cfg file for L4D2, follow these steps:
// Voice chat toggle (hold to talk) bind "v" "+voicerecord" autoexec.cfg l4d2
(Press to shoot; release to swap back to previous weapon – great for shotgun shoving.) To create an autoexec
By default, Windows hides known extensions. You likely just created autoexec.cfg.txt , which the game will ignore. open the console ( ~ )
Now launch the game, open the console ( ~ ), and watch for the confirmation message. Your file is working. Go kill some Special Infected.