This ViolaJonesHandler is service runner about as main core of ViolaJones application activity. without this service, ViolaJones app will on passive state (not in mode of protecting login screen).

Then ViolaJonesHandler as the coming of use in ViolaJones app is by calling this file to install this file itself, or you can calling as you own on command line:

Argument:

filename	arg	desc
ViolaJones.exe	/i	install
ViolaJones.exe	/u	uninstall
ViolaJones.exe		run