Kenwood TS-590S - Manual (Page 6)

6
If you are not using an ARCP-590 or Computer Control Command, there is no need to
install the Virtual COM Port. However, if it is not installed, the Wizard message appears
every time the USB cable is connected, so we recommend installation.
When the “New Hardware Detected Wizard” message appears and you have not yet
installed the Virtual COM Port, click “Cancel” and install the Virtual COM Port before
continuing.
For details on how to install the Virtual COM Port please visit the download page noted
above.