pc camera on JXD661 doesn't work ... plz help
 

I have a JXD661 player
It have a fucntion is : VideoRecorder means that it become a pc camera.
But I cann't use that function , I set up its driver, I turn to VideoRecorder and connect to pc but it doesn't work.
So if anybody know how to use this , plz tell me.

Thank you very much.