Jump lists are a new feature of Windows 7 that enhance the usefulness of the icons on the taskbar. Jump lists add the most recently used objects from the application to a pop-up menu. Just right-click the icon to view the Jump list.
Other applications written for Windows 7 offer additional capabilities in the Jump menu. For example,
Internet Explorer 8 offers your browsing history. You don’t need to do anything to set up Jump lists — they happen automatically. Whenever you want to use a Jump list, just right-click a taskbar icon and choose from the list the item you want to open.