This part is a little tricky because the COM ports need to be shared between UnixWare and other DOS sessions.
For example, PROCOMM won't allow you to do anything unless you have a working COM port. In this case, you would click on the pop-up options menu on the procom.exe icon and configure what com ports you allow this program to use.
At run time, if the COM port is in use (by UnixWare or by another DOS session), then UnixWare 1.x won't allow the DOS session to start up. UnixWare 2 will allow the program to run (but not, of course, allow the program access to the COM port). This can be quite useful if you are running a program suite which includes modem access - UnixWare 2 will allow you to run all of the suit except for the part which want to access the COM port (UnixWare 1 wouldn't allow this).
(Note that if the COM port becomes available after the DOS session has started, you will need to exit DOS and re-enter)
If you have, say, a multi-port board which is supported by UnixWare, then DOS sessions can also make use of the hardware.
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