As the kids get older and smarter and chat with other friends they will easily undo your script.

$35.00 But well worth the price. I've used it in the past for my kids until they got older and ran off to College.

Many options and very difficult to undo unless you have Admin rights and even then you better be pretty well versed with computers to disable it. Not quite as bad as a root kit, but darn close.

ENUFF

Quote:

Controls who uses the computer and individual programs, when and for how long.
 
- Limits user's time on Internet, games and chatting.
  
- Eliminates arguments and frees up time for homework, family or exercise.
 
- Ensures equal time-share for everyone in a multi-user computer environment.