ALG is the Application Layer Gateway, lets other computers connect to the internet through yours. If you're not sharing your internet connection with another computer you can shut that down (go to the Serveices page and set it to "Disabled").
No idea what LNSSATT is though.
EDIT: Uh... bad wording.
No idea what LNSSATT is though.
EDIT: Uh... bad wording.