MessageBox/MsgBox Features Features of MessageBox/MsgBox No Description See How 1 Exact replacement for MessageBox/MsgBox found in WPF and Silverlight. Gives a native feel of XAML 2 Supports all MessageBox features like different types of buttons, results etc. 3 Helps migrating your WinForms apps into WPF/Silverlight with minor or no code change with respect to MessageBox/MsgBox What next? Release notes MsgBox for WPF MsgBox for Silverlight Free to use. Not free to distribute.