Change multimedia button in registry

[LPent]

I know I can change the functions of the multimedia buttons on my keyboard in the registry (here: HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\AppKey\)
And I know that the constants are:
8 -APPCOMMAND_VOLUME_MUTE
44 - APPCOMMAND_MIC_ON_OFF_TOGGLE

So how do I change my volume mute button into a mic toggle button?

 

[linney]

What brand/model Keyboard is this?

In Control Panel under Keyboard are there any options in there for you to make changes?

 

[LPent]

It's an A4tech keyboard, and no there aren't any settings in the control panel. But I am not after a software solution, I know it must be possible in the registry. I can change the behaviour of the button into launching any application I want, I just don't know how to make it mute/unmute the microphone.

 

[linney]

This link mentions the following Registry location, are there any useful clues in it?

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\AppKey]

Tweaking the extra keys on the keyboard

http://www.nigelhewitt.co.uk/tricks.html

 

[LPent]

Thanks for the link, but it doesn't tell me anything I don't know already. As you can see, in the table it says key 44 is "toggle microphone" but it doesn't tell how to "call" that function. I suspect it is a ShellExecute but which one?

 

[linney]

Anything to do with Sound Properties is controlled by mmsys.cpl.