Wake On Lan (WOL) is a really great idea. It allows systems to be remotely powered on so long as they were software shutdown. ( i.e. you didn't hit the power button). This is fairly advantageous in for example education institutes where all the computers should be powered on for 9am sharp.
Full Specifications
What's new in version 0.0.1
General
ReleaseNovember 7, 2008
Date AddedAugust 8, 2006
Version0.0.1
Operating Systems
Operating SystemsWindows 95, Windows 2000, Windows Vista, Windows 98, Windows Me, Windows, Windows XP, Windows NT