Set Default Video Capture Set A Default Webcam?

Set a default webcam? - set default video capture

Hello, my laptop comes with a built in camera, but it is a rather poor quality. So I bought a suitable () as a separate entity, but now, when it is connected does not know how to build a better standard. I use Skype if I use my foreign friends, but if you're here for the webcam can not the computer that you choose. Once the device is connected to a USB port, it feels lighter and then open it nothing less than independence "Video Capture" software, which comes with ... But, obviously, can therefore be used as a webcam, because I said that already in use. I'm in trouble ... Please help.

Thank you very much.