In Windows Vista as well as in Windows 7 the Control Panel has had a major redesign, compared to Windows XP. All items are now organized into categories, and the actual dialogs might not be accessible right from the control panel.

To overcome this “shortage” you can start-up a new explorer window, and type in the address-bar shell:::{ED7BA470-8E54-465E-825C-99712043E01C}. This will open up a new view, showing about 250 entries for all dialogs within the control panel; happy tuning.