in reply to Re^2: how to mute system volume under windows 7
in thread how to mute system volume under windows 7

"maybe there some black magic perl lines can do this also.."
no hope. Perl ends where OS start.
In addition to Nircmd also AutoHotKey can do this.

L*
There are no rules, there are no thumbs..
Reinvent the wheel, then learn The Wheel; may be one day you reinvent one of THE WHEELS.