Enables the ID_FILE_SEND_MAIL command if mail support (MAPI) is present.
A pointer to the CCmdUI object associated with the ID_FILE_SEND_MAIL command.
Otherwise the function removes the ID_FILE_SEND_MAIL command from the menu, including separators above or below the menu item as appropriate. MAPI is enabled if MAPI32.DLL is present in the path and, in the [Mail] section of the WIN.INI file, MAPI=1. Most applications put this command on the File menu.