I don’t know if XP even has any registry settings to control the level for say, the Microphone setting. If there is that’d be great so I can then start testing out some batch scripts (been playing around with these lately ^_^).
No idea, interesting thought though. Just from the way the registry is structured, I don’t know how such a key would work. But then, that information has to be stored somewhere…
I couldn’t find it on google or manual searching in the regedit with “volume control” or “sndvol32” and that one doesn’t contain any hidden switches either.