Tweak windows security settings, limit user PC time, restrict access to Internet.
The Coolstuff Alarm Clock is designed for Windows Mobile devices to make a loud sound at a specific time. It supports 5 alarms with different times for different days, plays WAV sound files with customized volume. Snooze mode lets you sleep in a little longer, just press the Snooze button on the Alarm screen to choose preferred time interval: 5, 10, 15 minutes. If you don't press the Wake Up button for a while it will play the sound every 2 minutes 5 times until it will close.