Serial Port Monitor is a utility that sits in your notification tray and monitors the serial ports on your computer. When a port is added or removed, a notification is shown containing the COM port name, allowing you to easily keep track of what’s been plugged in and out. This saves having to navigate to Device Manager to figure out what’s been plugged in.
Serial Port Monitor can be downloaded from the project’s SourceForge page.
If you have any problems, please post a message on the SourceForge Serial Port Monitor Forums.