You may want to head over to a DDK newsgroup or something for this, but
here it goes. USBVIDEO.SYS is actually a minidriver that bypasses
proprietary drivers. It allows polling of the hardware to determine
what it is capable of and simply transports data to and from the
computer. I would recommend do a little research here: http://msdn.microsoft.com/library/d..._53d4ab37-50e4-4079-b978-8356eb59f4b6.xml.asp
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