I'd like to be able to assign a shortcut key (hotkey) to toggle VC On and Off. This would prevent the false positive which I've never been able to get rid of no matter what "Start Listening / Stop Listening" command I use. I currently have a voice recognition program I wrote that does this using an MCE remote control button assigned to MyTV (CTRL+ SHIFT+T) to toggle on and off listening. It’s very hard for me to move to VoxCommando without it.

Sure.

You can use the VC hook plugin to capture global keyboard combinations as events (included in version 0.944 http://voxcommando.com/forum/index.php?topic=751.0)

or you can use eventGhost with any supported remote / devices to send commands to VC.

if you prefer you can also use your coding skills to send commands to VC using udp and simple text commands (I can provide help)

or you can use the udpsender.exe commandline program to do the same.