Using the dialog window's capability to minimize itself to a location, you can create Multiple Document Interface (MDI) layouts in your line of business WPF application.

You can fully customize everything about your dialog window's header (or title bar) with a XAML template designed either in Expression® Blend™ or Visual Studio®. So you can customize the appearance of or visibility of its minimize and maximize buttons, its caption, and apply your own rich brand of styling. When the dialog appears minimized, you can specify an entirely different template. For example, this minimized template could present a preview much like the Windows® 7 task bar preview, only in your WPF application.

xamDialogWindow™ can appear normal, minimized, maximized to the browser window dimensions or hidden. It will remember its state, and there are buttons familiar to the user which normally appear on the header that allow the user to change the window's state interactively.