User Time Control

If you are concerned your child may be spending too much time online or playing games or you do not want him or her to use your PC when you're either asleep or away from home, this type of software offers a solution. It allows you to set limits on how much time your child spends on the computer or online. Vista User Time Manager lets you specify when exactly and how long the computer can be used and define users which will be allowed to use the computer without any limits. You can schedule time intervals and the number of hours each child can use the computer per day a week.

Limitations:

Limited functionality