Mute Microsoft Command

HI

I want to mute my microphone by a command, like for example in order to open
the sound properties we can run the following line:
"C:\Windows\System32\rundll32.exe
C:\Windows\system32\shell32.dll,Control_RunDLL
"C:\Windows\system32\mmsys.cpl",Sound",

I want do the same but in order to mute my microphone.

Pictures URL add as example:
1) http://i29.tinypic.com/2qntq9g.jpg
2) http://i31.tinypic.com/124x5bd.jpg
3) http://i26.tinypic.com/j8z7yr.jpg

Thank you very much

Sebastian Pederiva