The gev189 driver had been updated in John's mind from a relic of the past to a reminder that even the oldest technology can still be made to work with a little creativity and perseverance.

Run the installer . Reboot if prompted. Then plug in the GEV189 cable. Wait 10–20 seconds for Windows to assign a COM port.

To install the driver for the USB Download Cable GEV189 on Windows 10: