You can access Help for MMC from the Help menu on the main toolbar, from the 
button on the toolbar of a console window, on the system menu of the MMC window or a console window, by right-clicking an item in the console tree or details pane, or by pressing the F1 key.
Help for MMC displays a combined table of contents that includes general Help for MMC and Help specific to each snap-in included in the console. Snap-in Help is provided only for existing Help files that were associated to snap-ins by their authors. If you are authoring a console, you may want to provide additional documentation for tasks associated with the console or provide information specifically related to your network.