Command line support is included in VideoCharge Pro version only. Using command line you may perform all operations that are available when working via user interface, that is command line provides you with full-fledged usage of VideoCharge. In order to work via command line you should first preset one or more config files and then just use the config file(s) as parameter(s) of the command line.
To learn more about support of command line press F1 when VideoCharge is loaded and familiarize yourself with “Create with VideoCharge” -> “Command Line support” chapter of VideoCharge Help system.