v4.0 [Mar 21, 2010]
The Microsoft® Silverlight™ SDK provides libraries and tools for developing Silverlight applications.
The Microsoft® Silverlight™ SDK contains online documentation, online samples, libraries and tools for developing Silverlight 4 applications.
Usage of the SDK is subject to the SDK License (included in the package).
If you have installed or plan to install Microsoft® Silverlight™ Tools for Visual Studio 2010, please install this update to the Microsoft® Silverlight™ SDK directly.
It's a tool that provides documentation that help you Windows applications.
