> >Ok, to do this you'd need two pieces: > >1: A device driver to provide the simulated serial ports. To do this you'd >need to get the DDK (device driver kit) from Microsoft and spend quite a >bit of time figuring it out. Non-trivial to say the least. This driver >could possibly directly access the real COM port, but you'd probably be >better off having it work with: > >2: An application (or NT service) that reads the data from the real COM >port and hands it off to the device driver (via a private API) to be sent >to fake COM ports and vice versa. Hmm.. I seem doomed. I don't even know anyone who can write windows device drivers. The original theory was that the application I designed this for, would put in a lower layer that would handle this, but it's not happening. -- Dave's Engineering Page: http://www.dvanhorn.org Where's dave? http://www.findu.com/cgi-bin/find.cgi?kc6ete-9 -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.