Interrupt your internet connection at will with this customizable tool, smartly made for gaming purposes. This works with CF, but has been made a way it should work with any game and the usefullness will depend of the game you want to use it on. When used in CF, it will allow you to teleport, sometimes become invulnerable and hit standing still enemies without them even seeing you.
How does it work? Well first pick the version that works for your computer (32bit/x86 or 64bit/x64), double click and choose to allow when prompted, a window like the following should appear:
Since this is a demo version, you're not allowed to change the settings, but you can still go ahead and use it like it is. Default mode is manual, so press F9 key whenever you want it to start lagging, you will hear a beep confirming the key press. If you want it to stop, then press F9 again (beep is played as well).
Closing the window will not get the lag switch to finish, it will just close the settings window. Once you are done using the lag switch, press F10 to terminate it properly (DO NOT KILL THE PROCESS, if you do so, you won't allow the switch to release System resources correctly).