When Proxifier is installed, the Windows network is automatically configured to work with it. But if the Windows network configuration is not properly done for some reason and the following message is displayed when you try to launch Proxifier:
"Fatal error: Windows Network is not properly configured to work with Proxifier. Please, run NetConf to configure."
Please, run the application NetConf.exe - Start->Programs->Proxifier->Network
Configurator. This application will help you quickly configure Windows
Network for working with Proxifier. In some cases you will have to restart your
computer after that.