Cannot Open COM Port Using Nations Bank Business Express ProgramID: Q223785 
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When you try to use Nations Bank's Business Express software, you may receive the following error message:
Unable to open communication port.
This issue can occur because Nation Bank Business Express is a 16-bit program which relies on the Comm.drv file to communicate with the communication (COM) ports.
To resolve this issue, edit the System.ini file in the Windows folder and change the Comm.drv= line to the following:
comm.drv=comm.drv
Additional query words:
Keywords          : kb3rdparty kbenv kberrmsg dun wincomm appscomp 
Version           : WINDOWS:95
Platform          : WINDOWS 
Issue type        : kbprb 
Last Reviewed: August 8, 1999