Microsoft Corp. created Silverlight to help companies design, develop and deliver engaging, interactive user experiences for Web, desktop, and mobile applications when online or offline. Silverlight is a free plug-in, powered by the .NET framework and compatible with multiple browsers, devices and platforms, bringing a new level of interactivity to wherever the Web works. On November 18, 2009, at the Professional Developer’s Conference in Los Angeles, Microsoft Corp. unveiled a Beta version Silverlight 4. This latest version delivers hundreds of features and controls that, when combined with the continued innovation in Microsoft’s world-class tools for designers and developers — Microsoft Visual Studio and Microsoft Expression Blend – present the leading edge in rapid, powerful application development. With printing support, rich reporting and charting, and integration with back-end systems and server products including Microsoft SharePoint, Silverlight is ready for business.