This is where you'll find VoiceAttack. It's a neat program that runs in Microsoft Windows*.VoiceAttack will take commands that you speak into your microphone and turn them into a series of keyboard key presses and mouse actions (and do other things like launch programs!).
VoiceAttack is designed to make games and applications more fun to use by adding your voice as an extra controller (by that, we mean pwn your buddies without taking your hands off your keyboard and mouse).

New - VoiceAttack will now allow you to assign all of the macros you create to keyboard keys. This means you can augment or even replace that expensive macro-enabled keyboard you have been using.

Home Page -
http://www.voiceattack.com/