VPN Watcher is a VPN connection monitoring tool. The program prevents controlled applications from sending any data to your network while the established VPN connection is down. You can add any application executable file to the controlled applications list, and the program will automatically start them when your VPN connection is established.
When VPN connection is down or disabled, VPN Watcher will automatically suspend or close all controlled applications. The connection is checked every half-second or less (up to 100ms) depending on the current networking conditions. You can use VPN Advisor wizard to find the most suitable VPN server for your real connection conditions. The VPN servers database is updated daily and contains data about all servers for most of the VPN providers.