Of these products, Expression Blend, Expression Design and Expression Encoder have themselves been written using Windows Presentation Foundation. Expression Web is the successor to Microsoft FrontPage, however it features significant differences from FrontPage, such as using its own rendering engine, rather than Internet Explorer's Trident layout engine. All the FrontPage bots and functions have also been removed. Expression Media is largely based on its predecessor iView Media which Microsoft acquired in June 2006. The technology from Expression Design is also based on a previously acquired product, Creature House Expression, however, Expression Design has been entirely rewritten in WPF.
Microsoft introduced Expression on 16 September 2005 at Microsoft's Professional Developers Conference in Los Angeles. Expression Encoder was introduced at NAB 2007. Microsoft Expression Studio was released to manufacturing on 30th April, 2007. The RTM news was announced at Microsoft's MIX 07 conference for web developers and designers. Expression Web, Expression Blend and Expression Media can also be purchased individually. Expression Design is only available as part of Expression Studio. Expression Encoder is only available for Windows. It was released to manufacturing on September 6, 2007.
Version 2 was released on May 1, 2008, which also included a graphical makeover for the suite to an inverse of the previous a white on black theme. This release brings all products in the suite to version 2, and now also includes Visual Studio Standard 2008. Visual Studio 2008 Professional Edition as well as Expression Studio is also available to students as downloads free of charge via Microsoft's DreamSpark program.