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USB Low-Full-High Speed Peripherals

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        Does anyone have Bulk In working with Windows 8? I have an application that has worked for years on XP and 7 but simply will not work with Windows 8. Ive tried with the same hardware on both win 7 and 8 - with CyUSB and with CyUSB3 - the win8 installation always fails Bulk In request with 997. Im suspecting a URB issue, but just want to know if Im chasing the impossible or not?   
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