Once the program is installed with the MSI installer it will start running on user login. The program will monitor whether or not you are connected to a specified VPN. The taskbar icon will turn red when a connection is active. https://imgur.com/a/2HJwxeF

MAKE SURE THE TASKBAR ICON IS SET TO ALWAYS BE SHOWN -https://www.digitalcitizen.life/how-set-which-icons-are-shown-windows-10s-notification-area

During the intial setup make sure you are actively connected to the VPN you want to monitor, otherwise the VPN connection will not be found.

So far it has been tested on Windows 10 version 1511, 1809, and 1909 with the built-in Windows VPN client- It should however work fine with other versions of Windows 10 and probably Windows 7