Comtrol RocketPort Serial Hub Series - Manual (Page 63)

Using Test Terminal (wcom32.exe) 63
Windows NT
Using Test Terminal (wcom32.exe)
WCOM32 is a terminal program that enables you to open a port, send
characters and commands to the port, and toggle the control signals.
Note: WCOM32 will not work on ports used by RAS if Remote Access
Service is running or any other application is using the port. If
you are using RAS, you must stop the service before starting
WCOM32 to test RAS COM ports. To test ports that are not used
by RAS, you do not need to stop RAS.
To start WCOM32, select Test Terminal from the Comtrol program
group. The program window displays:
Follow these steps:
1. Select Open Port from the Port menu. A list of possible COM port
numbers displays.
2. Select the COM port you want to test.
If the COM port does not exist or if it is currently being used by
another program, a Create File Error message displays.