kittof 

WPF About Box is a simple and free about box for WPF using MVVM pattern. Several properties can be set. Some properties are read from assembly, automatically.

WPF Open Dialog is a simple and free open/save file/folder dialog for WPF using MVVM pattern.

WPF Message Box is a simple and free message box for WPF using MVVM pattern. Image, buttons, message, and caption can be set.