The old WDM-based vhci could not fully support USB libraries and
applications such as #111 because it did not implement many USB host
contoller & hub functionalities. They were impossible to be properly
developed with poor MS documents. However, MS has already implemented
most things via USB device emulation(UDE).

Now, usbip-win provides a vhci driver using UDE. It is experimental
and more tests are required.