Hi,
in case it helps, I did a small batch to enable the sound (in case it is mute off) and set it to the maximum, then it plays a sound. The sound of a dog in my exemple
![Wink ;)](http://forums.x10.com/Smileys/default/wink.gif)
nircmd.exe mutesysvolume 0
nircmd.exe changesysvolume 65535
sndrec32 /play /close d:\alarm\dog_alarm.wav
exit
FYI nircmd is a nice very small and free tool that you can download on the net.
Rod