If you are running Vista Ultimate on a domain, you will notice that Parental Controls is disabled by default. In order to utilize Parental Controls so you can limit access to the web, set hours that the account can access the computer, what games can be played and what applications can be run, you will need to enable this functionality. Parental Controls can only be applied to standard users, not administrators. To enable this Parental Controls on a domain computer, follow these steps:
1. Press the WinKey+R to bring up the Run dialog box.
2. Input gpedit.msc.
3. Click OK.
4. When the UAC prompt appears, select Continue.
5. The Group Policy Object Editor window will appear.
6. Under Local Computer Policy, expand Computer Configuration.
7. Expand Administrative Templates.
8. Expand Windows Components.
9. Select Parental Controls.
10. In the right pane, right-click Make Parental Controls control panel visible on a Domain.
11. Select Properties.
12. Select the Enabled radio button.
13. Click OK.
14. Close the Group Policy Object Editor.
15. Log off of the machine, and then back on for changes to take affect.