The Windows 7 API Code Pack for the .NET Framework (formerly VistaBridge) wraps Windows 7 native functionality for easy consumption from your .NET Framework Windows 7 Client applications. Features in the 0.85 release include:

• Support for Windows Shell namespace objects, including the new Windows 7 libraries, Known Folders and non file system containers.
• Windows Vista and Windows 7 Task Dialogs.
• Windows 7 Explorer Browser Control supporting both WPF and Windows Forms.
• Support for Shell property system.
• Helpers for Windows 7 Taskbar Jumplists, Icon Overlay and Progress bar.
• Support for Windows Vista and Windows 7 common file dialogs, including custom file dialog controls.
• Support for Direct3D 11.0 and DXGI 1.0/1.1 APIs.
• Sensor Platform APIs
• Extended Linguistic Services APIs

Check out the 2 minutes or less demo videos of the Windows 7 Code Pack in action:

• Taskbar Overlay
• Taskbar Jumplist
• Taskbar Progress
• Folder Dialog
• Explorer Demo