On Mon, 6 Dec 2004, I wrote:
 >
 > Recently, I added a mono USB headset (with microphone) for
 > use with Skype internet phone.  
 >
 > The problem is, now the desktop speakers don't work, while
 > the headset is configured for Skype.  And vice versa: the
 > headset (for Skype) won't work, while I have the speakers
 > configured like they were "before Skype."  
 >
 > It is too difficult to reconfigure everything, to switch
 > between the speakers and the headset.  
 >
 > What do I need to add, to achieve "easy switching" between
 > a headset (with microphone) and basic stereo speakers

-------

For the record -- here's the solution I was looking for:

With the USB microphone unchanged, the sound output can be 
redirected as follows:

Create two shortcuts to two .REG files:


1) name:  VIA AUDIO - SPEAKERS
   file:  C:\WINNT\VIAAUDIO.REG  -- file contents:

REGEDIT4
[HKEY_CURRENT_USER\Software\Microsoft\Multimedia\Sound Mapper]
"Playback"="VIA AC'97 Audio (WAVE)"

-------

2) name:  USB AUDIO - HEADSET
   file:  C:\WINNT\USBAUDIO.REG  -- file contents:

REGEDIT4
[HKEY_CURRENT_USER\Software\Microsoft\Multimedia\Sound Mapper]
"Playback"="USB Audio Device"

-------

Then, just click on the appropriate icon to instantly reconfigure 
the audio output to either speakers or headset.

This only works before a program "hooks" the audio -- a running 
audio program will need to be restarted before the change will 
take effect.


I discovered the appropriate command line using Regshot 1.7.2 
(freeware) (http://www.majorgeeks.com/download965.html).  Regshot 
compares a before and after snapshot of the registry and outputs a 
file containing only the differences.  Very easy.

Then I used RegScanner 1.20 (freeware) (http://www.nirsoft.net)
to jump directly to
  HKEY_CURRENT_USER\Software\Microsoft\Multimedia\Sound Mapper
in Windows RegEdit, to verify the "REGEDIT4" commands.



Bill





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