Have you ever seen this error when attempting to run some capture software on OSX? (Note: The current process label in the error message is dependent upon which app you're running - in my case its one called vic):
[000:029] MagicCam 0: Current process: vic, Flash is loaded: no
[000:029] Error(magiccammac.cc:276): MagicCam 0: MagicCamOpen: Not an allowed process!
It is coming from the Google Talk's virtual video devices (but it's probably not actually causing any trouble directly - see below) - which are installed here:
/Library/QuickTime/Google Camera Adapter 0.component
And the MacCam related functions are in these two files:
/Library/QuickTime/Google Camera Adapter 0.component/Contents/MacOS/Google Camera Adapter 0
Run strings on it:
strings "/Library/QuickTime/Google Camera Adapter 0.component/Contents/MacOS/Google Camera Adapter 0" | grep -i magiccam)
and you get:
Anyway it's not actually harmful and generally if you've a problem this is unlikely to be the cause of it. You can just [re]move the files as necessary to get rid the messages though your problem may well be somewhere else but at least you can eliminate it as a possible cause.