usbser_lowerflt.sys - At your option

usbser_lowerflt.sys

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Description:

usbser_lowerflt.sys
USBSER_LOWERFLT.SYS is a Filter Driver for the Toaster Stack.
USBSER_LOWERFLT.SYS is related to Windows (R) Codename Longhorn DDK driver.
Manufacturer: Microsoft Corp.
www.microsoft.com