Options Dialog
You can define "global" HostMonitor's settings in the Options dialog window.
Customize the color palette for HTML logs & reports, mailer parameters, proxy settings,
log file formats, options for utilities, etc. Options are categorized on different pages
and navigation is made through a convenient tree structure.

Open Device Manager → Ports (COM & LPT). You should see without any warning icons. That is the mark of a successful top driver installation.
: Transforms a physical USB port into a virtual RS232 serial interface. cipherlab 308 usbtors232 interface converter driver top
He tried a compatibility mode. He tried a generic prolific driver. Nothing. The red light on the 308 converter stayed solid—an error state. Open Device Manager → Ports (COM & LPT)