Microsoft has based most of its management applications on the Microsoft Management Console (MMC). The MMC provides a framework for building management consoles. Microsoft and many third-party application vendors have used this framework for creating their management consoles.
The MMC uses snap-ins for system and application management. Windows 7 comes with many built-in MMC snap-ins you can use to manage the system. You can use them to manage user settings, Windows applications, security, and many other vital aspects of the system.