SplashKiller lets you hide those splash screens that appear when an application is loading.
It saves you from having to: 1. Find a 'no splash screen' option (if one exists) in the application. 2. Modify your registry to turn off a splash screen. 3. Hack the application itself to remove the splash screen.
There may be some splash screens that SplashKiller doesn't hide, and there might possibly be some windows that aren't splash screens that SplashKiller will hide by accident. But, at the moment, SplashKiller is hiding all the splash screens on the authors PC (which is the main reason it was written).