comst13.zip    29577 05-29-97   Comset v1.3: Modem/UART/serial port tester
lpt_io_4.zip   12527 07-21-99   Capture, view, playback, etc. digital data
lptfl101.zip   11954 11-24-97   Redirect parallel port out to DOS file/device
ports20.zip    35746 01-21-99   PORTS: Tests functionality of system ports
resq232s.zip  205085 12-21-99   ResQ232: Makes DOS an RS232 line monitor
rs232105.zip   49328 02-03-98   RS-232 Bus Protocol Analyzer
seril200.zip   17137 06-21-98   Serial: Shows status of COM ports on screen