I thought I would start a new thread for this one as the question appears at least a couple of times. If your Windows XP no longer recognises the switch on of a USB camera (using Cam2PC's event handling) then download and run Microsoft's AutoFix.exe. More details can be found here: http://www.microsoft.com/downloads/deta ... laylang=en
Nick
P.S. I haven't quite fixed my setup yet. Running AutoFix now runs the event handler within XP, but it opens an Explorer window rather than allowing me to choose the Cam2PC handler. I tried PowerToy TweakUI to try to reset it but I can't get it to go back to "ask me every time". Any ideas?