Microsoft Expression Encoder is available in different editions:[5][8]
Pro edition, the full-featured commercial incarnation of the product is available through retail or volume licensing outlets as well as the BizSpark program.
Pro edition without codecs, which lacks royalty-incurring codecs and is available to DreamSpark, WebsiteSpark, or MSDN subscribers. This version does not support H.264 or Advanced Audio Coding (AAC) formats in its output, nor can it open AVCHD, MPEG-2 and Dolby Digital (AC-3) formats.
Express edition is free of charge but feature limited. This version has the same restrictions as the Pro edition without codecs, but also does not support live streaming.
History
Version 1.0 was released to manufacturing on September 6, 2007.
A beta of version 2.0 was released in March 2008 which included new VC-1 codecs (Advanced, Main, and Simple profiles) and better Silverlight support. Version 2 was released to manufacturing in May 2008. Expression The first service pack added H.264+AAC encoding support for devices. According to Microsoft, Expression Encoder 2 was not a replacement for Windows Media Encoder, despite having many similarities.[9]
Expression Encoder 3 added multi-channel audio output, more built-in device profiles, like support for Zune HD, Xbox 360 and iPod Touch, as well as profiles for online services such as Facebook and YouTube. It also added Expression Encoder 3 Screen Capture, which allows users to create video screen captures.
Version 4 added IIS live smooth streaming, screen capture improvements and an H.264 encoder based on the MainConcept SDK.[10] Expression Encoder 4.0 SP1 was released in January 2011 and added CUDA-enabled GPU-assisted encoding, HE-AAC, screen captures as a live source, live broadcasting templates, Selective Blend de-interlacing and other features.[11] Service Pack 2 (SP2) with about 300 bugs fixes was released on November 2, 2011, and added new features such GPU-accelerated video encoding and the removal of 10 minutes screen recording limit.[1][2]
Some Microsoft Expression Encoder components include:
Smart encoding and smart recompression for WMV if the source is also WMV and no frame operations are performed,[12]cuts editing, serial batch encoding, Live encoding from webcams and DV camcorders
Decoding/import format support because of DirectShow
Microsoft Expression Encoder cannot encode video streams in Windows Media Video formats older than version 9.[14] Expression Encoder requires QuickTime to decode MP4 container format,[3] although Media Foundation, a component of Windows 7, can natively decode this format.[15]
^"Frequently Asked Questions". microsoft.com. Microsoft. Archived from the original on December 14, 2012. Retrieved June 27, 2009. Q. Does Expression Encoder replace Windows Encoder? A. The two products serve different purposes. Windows Media Encoder continues to be a freely available solution for encoding video for live and on-demand scenarios. Expression Encoder 2 is purpose built to enable you to produce rich interactive Silverlight Media Experiences. Expression Encoder 2 also uses the newest VC-1 SDK for better Windows Media quality and faster encoding that the previous technology used by the Windows Media Encoder.
^Juteau, Eric. "How to Encode files to WMV 8 using Expression Encoder 3 ?". Expression Studio Forums. Microsoft. Archived from the original on March 8, 2012. Retrieved March 9, 2012. Unfortunately, we don't support exporting anything under WMV9 (also called WMV3), which shipped with XP and above (simply use Baseline or Main).