Mute via Hardware button?

[Jed D`Lagged]

For the last few days I've been trying to figure out how to mute the sounds on my Magician via a hardware button. Mapping to buttons isn't the the issue, it's finding out what command to run. I can't find any logical volume control executables in the Windows folder. The only thing I could think of is VJKeyPress, but that has no effect with the relivant key codes.

Any ideas, anyone?