When do stupid users finally get it: "there is no such thing as a free meal!".
Of course, MS has to pay their engineers. Only brainless idiots do not understand the basics. Same goes for "Errorsafe". Do people really believe they do it for free? Geeeeee.
Very cool software, but not free though. Anyway, its just $40
It does both, the same as ZonScreen but at much faster performance, and it also allows you controlling four computers from a a single mouse n' keyboard.