tepatnya Microsoft SilverLight,
Microsoft Silverlight is a browser plugin that allows web applications to be developed with features that characterize a rich internet application: animation, vector graphics and audio-video playback. Silverlight competes with products such as Adobe Flash, Adobe Flex, Adobe Shockwave, Java FX, and Apple QuickTime. Version 2.0 brought improved interactivity and allows developers to use .NET languages and development tools when authoring Silverlight applications.
it’s amazing !