http://blogs.msdn.com/usisvde/archive/2009/06/23/preview-for-deep-zoom-composure-available.aspxDeep Zoom Composer lets you prepare content for Silverlight ’s Deep Zoom . Deep Zoom lets your users browse images, no matter how large or how many, a speedy, seamless, and smooth experience. The June 2009 Preview of the Composer, build 0.9.000.8, onen-USCommunityServer 2.1 SP1 (Build: 61025.2)