The progam is mttty.c in the MS help files.
Gordon
>>There is an example in the MS Help files called TTY.C - IT is pretty
>>self-explanatory.  Youc should also be able to find it in the MSDN on
their
>>web site.
>>
>>>I want to write a Windows .EXE (not a DOS .EXE) with COM-port I/O based
on
>>>Windows drivers, not INPORT and OUTPORT calls.  Any clues gratefully
>>>appreciated.
>>
>>-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
>> Dennis Merrill, BSEE           work: merrill@nicolet.com
>> Device Driver Engineer         home: merrill@ieee.org
>> Embedded Systems Group
>> Nicolet Instrument Corp.    phone: 608.276.6136
>>-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
>>
>>
>Regards
>
>Adrian
>
>WWW    WWW   Adrian Gothard
>WWW WW WWW   White Horse Design
>WWWWWWWWWW   +44-385-970009 (Mobile/SMS), +44-118-962-8913/4 (voice/fax)
>WWWW  WWWW   whd@zetnet.co.uk, http://www.users.zetnet.co.uk/whd
>---
>Developers of GPS satellite-based tracking systems for vehicles/helicopters