The Windows 7 taskbar provides enhanced functionality that enables you to use the taskbar button to communicate status to a user and expose common tasks when the window is minimized or hidden. The functionality exposed by the types in the System.Windows.Shell namespace is not available in versions of Windows prior to Windows 7. In Windows 7, some functionality might not be available depending on the user's settings. 

Classes

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	Class	Description
	JumpItem	Represents the base class for the JumpPath and JumpTask classes.
	JumpItemsRejectedEventArgs	Provides data for the JumpItemsRejected event.
	JumpItemsRemovedEventArgs	Provides data for the JumpItemsRemovedByUser event.
	JumpList	Represents a list of items and tasks displayed as a menu on a Windows 7 taskbar button.
	JumpPath	Represents a link to a file that is displayed in a Windows 7 taskbar Jump List.
	JumpTask	Represents a shortcut to an application in the Windows 7 taskbar Jump List.
	TaskbarItemInfo	Represents information about how the taskbar thumbnail is displayed.
	ThumbButtonInfo	Represents information about how to display a button in the Windows 7 taskbar thumbnail.
	ThumbButtonInfoCollection	Represents a collection of ThumbButtonInfo objects that are associated with a Window.

Enumerations

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	Enumeration	Description
	JumpItemRejectionReason	Describes why a JumpItem could not be added to the Jump List by the Windows shell.
	TaskbarItemProgressState	Specifies the state of the progress indicator in the Windows taskbar.