Silverlight is a web application tool which can be also used as a browser plug-in just like a flash player which can be integrated with animation graphics and multimedia.Developed by Microsoft it can also run on Mac OS and Linus system,The Silverlight plug-in renders graphics and multimedia using a vector-based graphics engine,It is also developed for the new windows 7 and also supports some models of symbian phones.Silverlight on a Windows Mobile device will also deliver live streaming, High quality video to smart phones and similar devices.One of the main aim of Silverlight is to enable developers in making rich interactive applications (RIA) .Theirs much more to Silverlight than just a web browser plug-in.Download Silver light browser plug-in for windows here.
Operating system : Windows 7,Windows Vista, Windows Me, Windows XP, Windows 2000, Windows NT.
FILE SIZE :4.7Mb
License Type: Freeware
Have already installed in my PC.
if u want u can try the beta version of the 4th release.