Okay there are three types, and you can browse about...
Link One: VR Commander
Link Two: Gaming Voice Command & Control Interactive Software Pack v2
Link Three: Shoot 1.6.4
I used the VR Commander, and Shoot 1.6.4 when I was playing the Silent Hunter, and Destroyer series, and it worked well (there were some glitches along the way but they can be worked out). The unfortunate side effect was using my home made microphone that just kept giving me a fat lip every time I turned my head left or right (I guess the price you have to pay to have some fun).
