Nearly all Web applications use menu controls as fundamental building blocks of the presentation layer. If you need an easy to use and feature complete Silverlight Context Menu control,VIBlend Context Menu for Silverlight must be on the top of your list. You can download it as part of the VIBlend Silvelright Controls package and use it for commercial and non-commercial purposes free of charge.

Features include:

Boundary Detection
Animations
Keyboard Navigation
Data Binding
Menu Scrolling
Templates
Theming

Product Screenshot:

Live Demo