Err Msg: The Selected COM Port Is Either Not Supported... (125979)
The information in this article applies to:
- Microsoft Windows 3.1
- Microsoft Windows 3.11
- Microsoft Windows for Workgroups 3.1
- Microsoft Windows for Workgroups 3.11
This article was previously published under Q125979 SYMPTOMS
When you try to use Terminal, you receive the following error message:
The selected COM port is either not supported or is being used by
another device. Select another port.
You can use the modem in MS-DOS, but you cannot use it with Terminal and
you cannot use it at an MS-DOS prompt in Windows.
CAUSE
This problem can occur if you use third-party communications programs. If a
third-party communications program adds itself to the LOAD= line of the
WIN.INI file, or to the Startup program group, it can take control of the
COM port and not release the port for any other application to use.
RESOLUTION
Remove the third-party communications program from the LOAD= line of the
WIN.INI file or from the Startup program group. Also check the AUTOEXEC.BAT
file to see if the communications program is being started automatically.
If so, remove the program from the AUTOEXEC.BAT file.
These steps will free the COM port for other applications to use. When you
want to use the third-party communications program, start it manually.
| Modification Type: | Major | Last Reviewed: | 12/5/2003 |
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| Keywords: | KB125979 |
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