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Expression Blend 3 is a user interface design tool that letsdesigners create application interfaces that can be completed bydevelopers with minimal modification. The interface designs can be usedeither for desktop applications that run on Microsoft's WindowsPresentation Foundation or for rich Internet applications that run onSilverlight, Microsoft's cross-platform, cross-browser applicationframework.

Expression Blend 3 introduces SketchFlow, a tool that enablesdesigners to create a prototype of the flow and layout of anapplication. The prototype runs in the SketchFlow Player, which allowsothers to explore the prototype and add feedback.

Expression Blend generates Extensible Application Markup Language(XAML), which can be used directly in Microsoft Visual Studio orexported into other tools and project formats. Code can also be editeddirectly within Expression Blend: the Intellisense code editor allowsdesigners and developers to work with C# and Visual Basic in additionto XAML.

Acquiring the Installation Media and License Key:

Installingthis product requires installation media and a license key.Installation media will be shipped to you free of charge, but only ifyou request it during check-out. If you don't already have the media,answer Yes when prompted during the check-out process.

Thelicense key allows you to use the installation media to install theproduct on as many computers as you have received donations for. Thisquantity is specified in the donation email sent to your organizationemail address after your eligibility has been verified and youradministrative fee has been received.For information about obtaining the license key, see Microsoft Software Donation Programs FAQ.