Login Sentinel Free is tool, allowing you to control time, when users can login into the windows.

Instead of windows parental control, this tool will logoff user, when time expired. But this is not all. Login Sentinel Free brings you other usefull functionality:

User friendly user interface - Allows you to select, when user can be logged in. Similar to Windows 7 Parental Control.
Time control for each account - Login Sentinel Free allow you to set login times for each account independently
30 minutes periods - instead of Windows 7 Parental control, Login Sentinel Free allow you to set time with 30 precision
User is logged out and computer shutdown, when time expires - Instead of Windows parental control, Login Sentinel Free will logout user and shutdown computer, when his time expires
Separate privileges - Login Sentinel Free is accessible also for restricted users, but they are not able to change settings. Only Windows Administrators are able to change settings in Login Sentinel Free.