Simtel MSDOS CDROM, Sep 1997.  Walnut Creek CDROM.
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 I/O Utilities
 path: \disc2\io_utils 
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comfix12.zip Windows COM port 'bug' fix/DOS COM port setup
comst13.zip  Comset v1.3: Modem/UART/serial port tester
dlm140.zip   Data Line Monitor: Turn PC into a datascope
kbfake10.zip Redirects serial input as if from keybd, w/src
lptfl10.zip  Redirect par. port output to a file or device
prlink20.zip File transfer prog. via printer/parallel port
qic02a10.zip Wangtek QIC-02 tape driver & Unix TAR I/O
redev100.zip Redirects AUX,COM1,etc to another char device