WakeMeUp!

operating-system · utility · http://www.highspheres.com/products/wakemeup · Tucows Inc.

This is an advanced alarm clock software for PCs with Windows 2000/XP/2003srv OS installed. It can resume your computer from any stand-by mode (S1 or S3) at a specified date or time. It can also notify you of an alarm even if there's no user logged on. Additionally, it handles alarms from multiple users of your PC. It supports MP3,WMA or WAV files as alarm notifications.