Caffeine

Caffeine is an application designed to keep your computer awake at all times. How? It's pretty easy: this application simulates pressing a key on the keyboard every 59 seconds. This way, although your computer may have its sleep mode or screensaver activated, you can keep it from switching over to either of those modes.

Using Caffeine is very simple. There's a coffee maker icon on the taskbar, and all you have to do is double-click to activate or deactivate it. When the coffee maker is full, the application is activated. When the coffee maker is empty, it's deactivated. It's that simple.

Caffeine is an application that's especially useful for anyone who has trouble with Windows sleep mode. Now, with this application, your computer will never sleep or turn on its screensaver automatically.