Microsoft Silverlight

(http://silverlight.net/)

Microsoft Silverlight is a programmable web browser plugin that enables features such as animation, vector graphics and audio-video playback that characterize rich Internet applications. Silverlight competes with technologies such as Adobe Flash, SVG, Adobe Flex, Adobe Shockwave, JavaFX, Curl and the JavaScript programming language.[1] Version 2.0, released October 2008, brings additional interactivity features and support for .NET languages and development tools.

Silverlight was developed under the codename Windows Presentation Foundation/Everywhere (WPF/E). It is compatible with multiple web browser products used on Microsoft Windows and Mac OS X operating systems. Mobile devices, starting with Windows Mobile 6 and Symbian (Series 60) phones, will also be supported.[2] A third-party free software implementation named Moonlight is under development to bring compatible functionality to GNU/Linux.

(http://en.wikipedia.org/wiki/Silverlight)