





                            Vmodem for SIO version 2

     Note: The VMODEM.EXE included with SIO version 2 is NOT compatible
     with the original SIO (version 1) drivers.

     To use VMODEM.EXE, one must load VMODEM.SYS.  To load vmodem.sys,
     include a line similar to the following in your config.sys:

     device=c:\sio2k\vmodem.sys logfile=c:\sio2k\sio2k.log

     In addition to the above, one must execute vmodem.exe and leave it
     running to access virtual modem ports.

     On my system, I use the TCPEXIT.CMD file to execute/load vmodem.exe. 
     TCPEXIT.CMD must be located in the \TCPIP\BIN directory on your boot
     drive.  By default, \TCPIP\BIN\TCPEXIT.CMD does NOT exist, so you may
     have to create the file.  This batch file is executed once the TCP/IP
     stack (software) has completed initialization.  My TCPEXIT.CMD file
     contains only the following line:

     start /win /min c:\sio2k\vmodem

     The above starts vmodem.exe as a minimized windowed session.

     Virtual modem ports must be defined in the sio2k.cfg file.  One can
     define as many COMn ports as needed in this config file (see
     SAMPLE.CFG).  To make a given port a virtual modem port, simply change
     UART$ to VMODEM$ in the OS/2 port definition section of the config
     file. For example in SAMPLE.CFG, change AltDriver=uart$,3 to
     AltDriver=vmodem$,1 to make COM3 the first virtual modem port.

