InsomniaX is not available for Windows but there are some alternatives that runs on Windows with similar functionality. The best Windows alternative is Don't Sleep, which is free. If that doesn't suit you, our users have ranked more than 25 alternatives to InsomniaX and five of them are available for Windows so hopefully you can find a suitable replacement. Other interesting Windows alternatives to InsomniaX are Sleep Preventer (Free), NoDoze (Free, Open Source), noblackout (Free, Open Source) and Keep Display On (Free).
Prevents your computer from going to sleep, hibernate, dim the display or start the screensaver. Application runs in the system tray when closed. New in version v1.3: -Parameter support. v1.2: Option to let display fall asleep. v1.1: Sleep timer.
NoDoze simulates keyboard/mouse activity to keep the screensaver from activating. Its activity depends on currently running programs. You can use regular expressions or Windows wildcards to choose when the screensaver is deactivated.
Simulates activity (=> disables screensaver and powersaving) while running programms (any .exe) from a choosen directory. Main purpose is to choose the steam directory to disable monitor powersaving while running steam games.