The MMC is a special console window meant to act as a sort of shell or index where a user can group other console windows together. When working with the MMC, these console windows are known as snap-ins. Examples of snap-ins include the Device Manager, Event Viewer, and Computer Management. The beauty of the MMC is that a user can build a custom group of consoles. Plus, the MMC can be saved, enabling it to remember the last place a user was working in.