Win2VNC is software that allows you to remotely control multiple PCs. Not only can you see the screen of all these machines, but it also possible to interact with their keyboards and mice. Once installed, Win2VNC will open a small window at the edge of your screen. You only have to move the pointer of your mouse so that the program supports your mouse and keyboard and sends their gestures to the VNC server running on other machines. To return to your main screen, you must exit this window that is to say to move the mouse pointer to the opposite edge.