WakeMeUp! is an advanced alarm clock that can resume your PC from any Stand By mode (S1 or S3) at specified date/time. It can give alarms without being started or if there're no users logged on. It handles unlimited number of alarms from multiple users of PC and allows flexible alarm configuration with 8 periodicity modes, from "one time" to "every year". Mp3, wma, ogg, cda (CD track), wav or m3u playlists can be set as an alarm notification.