Find out what COM ports are installed on your computer without using a screwdriver! Full Visual Basic 6 Source code is included!

ShowPorts for DOS Utility - (20 KB executable file)
Besides listing the available com ports, ShowPorts for DOS also displays the IRQ, port base addresses and what type of UART each port uses. This is a DOS program that should not be run inside the Windows environment. Refer to the read me file that is supplied with this program before running it.