I think I can help you. It seems to me that parental control software will do the trick for you Ez OFF
List of features from their web site:
+ Auto Shut Down, Auto Reboot, Auto Lock PC, Auto Log OFF, Auto Suspend or Hibernate PC
+ Protects your computer even in Windows Safe Mode
+ Keeps computer Shut OFF or Locked Automatically. This is a unique feature, only Ez OFF® can keep PC turned OFF or locked for as long as you need it
+ Separate schedule for each day of the week
+ Separate schedule for each PC user
+ Multiple schedules per day
+ Time accumulation, maximum allowed time control
+ Precise turn OFF / turn ON time
+ Free household license up to 3 PCs per house per 1 purchased license
+ Protects from changing PC System Time
+ Protects Task Manager from unauthorized access
+ Ez OFF is password protected
+ Modern skin support
+ Customizable Parental Control notification PC Shutdown message
+ Windows Vista, Windows Vista 64 bit edition, Windows XP 64 bit edition compatible
Here is address
http://www.yoursafet...guide.com/ezoff.aspxI know the company cause I use another parental control software - Ez Internet Timer (
http://www.internettimer.net). Really good software for parents. This is the perfect program for me because my daughter gets on the internet the minute she gets home and it is interfering with her school work. If you have the same problem, you can use Ez Internet Timer to schedule when your users (all 3 children) can access selected Internet activities such as Web Browsing, Instant Messenging, Email sending or File Sharing. As for me, I often set Ez Internet Timer to turn off Skype and MSN while my kid does her homework.