WakeMeUp! is an advanced alarm clock software for PCs with Windows 2000/XP/2003srv OS installed. For now, all PC alarm clocks rely either on Windows Task Scheduler or their own timers and work only when they are running. WakeMeUp! implements a much more convenient approach. It can resume your computer from any Stand By mode (S1 or S3) at specified date/time. Of course, it can switch your PC to Stand By mode at specified date and time. It is able to give alarms without being started, because WakeMeUp! has a special Windows system service that is responsible for alarms management, resuming from Stand By etc. Therefore it can notify you of an alarm even if there's no user logged on. Such situation is possible after windows restart caused by power failure. It is a piece of cake for WakeMeUp! to handle unlimited number of alarms from multiple users of your PC. Nevertheless, a user can see only his own alarms in program window. WakeMeUp! can play and fade in mp3, wma, wav and m3u playlists. It's also capable of executing a command line (start a program or open a file) as alarm notification. It will automatically increase volume to max and make some beeps through PC speaker if your loudspeakers are turned off. It allows you to change skins or interface languages on the run. A nice Mac Os(R) skin is active by default. WakeMeUp! can be used as an alarm clock with almost unlimited abilities, a simple and very reliable reminder or an anti-theft software. Hypothetic burglars can be frightened off by music or recorded speech playing according to alarm schedule composed by you.