NT File System Driver for USB device

Hey all -

I currently have a customer that wants me to develop a file system
interface to their digital camera on Windows NT 4 SP6. The camera is a
USB camera, and I shall be using a 3rd part USB stack to get the USB
working.

Currently, the customer apps and camera are working on Win2k and
Millennium, and I think they are using a “Mass Storage Device” driver
to get the file representation of the images on the Flash on the camera.
So there apps can simply open a file, and perform operations on the
Flash disk as if it were simply a file system. I think they can also
open explorer and see the flash as if it was a disk. They want the same
functionally on Win NT 4 SP6

Could/Should I develop an NT4 File System to give them this interface to
the camera ?

Was the File System support in NT4 pulled by microsoft (I heard that
rumor)

Are there any other, simpler solutions that may be a better fit

Thanks !

-Chris