The Help Topics browser dialog box provides user access to Help information. To open this window, include a Help Topics menu item on the Help drop-down menu. Alternatively, you can include menu commands that open the window to a particular tabbed page — for example, Contents, Index, and Find Topic.
In addition, provide a Help Topics button in the toolbar of a task or reference Help topic window. When the user chooses this button, display the Help Topics browser window with the last page the user accessed. If you prefer, provide Contents, Index, and Find Topic buttons for direct access to a specific page. For example, by default, reference Help windows include Contents and Index button access to the Help Topics browser.