DotNetBar for WPF includes an Advanced Window control that in default configuration provides Office 2007 style windows. Advanced Window inherits from standard Window control and you can use it anywhere you would use Window control.
Office 2007 Blue, Silver, Black and completely custom auto-generated color schemes are supported. Screen-shot below shows the default appearance:
Advanced Window control also provides an excellent high-performance custom styling functionality with ability to style every single part of the window including title bar, system buttons, borders etc.
Great care has been taken to design Advanced Window so software based rendering, which significantly slows down rendering, is avoided. Screen-shot below shows the custom styled applied to the Window:
Please download free fully functional trial version of DotNetBar for WPF and see how easy it is to create professional looking WPF applications.