WHQL. No 'Black video'
Fixes high DPC [30% CPU Utilization on a P3-1Ghz] problem, from poorly written older driver, pre-packed with many non-branded ZC0305 USB Cameras, non-WHQL v305.1.1130.25.
This driver is all you need for 32-bit or 64-bit support in Windows XP (tested on XP 32-bit).
It supports the PK-333MB/PK-336MB/ PK-335MB, WhitCom WHC019 (tested), or Look 316S and many others.
Does not have 'Black output' problem of x0305 WHQL v305.1.0325.04 on VIMICRO's website.