Not exactly what you're asking for, but there used to be a program
that came with the Windows NT resource kit called "srvany.exe". It
does the same thing as the cygwin program, but it doesn't use Cygwin.
I wonder if it would work better for you? It apparently works on all
of the newer versions of Windows, too. I'm not sure where you could
get it now, though.
Thanks, will google for it 