Microsoft Expression Encoder

» see microsoft.com/expression as it lived, on the wayback machine

~ the last words ~

Expression Encoder was a transcoder and a simple non-linear video editor for Windows, with a WPF interface on top and a command line underneath. It output H.264 or VC-1 and its real job was preparing video for Microsoft Silverlight, complete with player controls and page templates, which tells you exactly how long its future was. Version 1.0 was released to manufacturing on 6 September 2007 under the name Expression Media Encoder.

It shipped in three shapes. Pro went through retail and volume licensing and carried the codecs Microsoft had to pay for. A second Pro build stripped those out for DreamSpark and MSDN subscribers, so students got a version that could not write H.264 or AAC and could not open AVCHD or MPEG-2. Express was free and had the same codec restrictions plus no live streaming. Microsoft was careful at the time to say that Expression Encoder was not a replacement for Windows Media Encoder, which continued alongside it for years and served a different purpose.

The versions came steadily. Encoder 3 added multichannel audio and device profiles for hardware like the Zune HD and the Xbox 360. It also introduced a screen capture component. Encoder 4 arrived with Expression Studio 4 in June 2010, bringing IIS Live Smooth Streaming and an H.264 encoder built on the MainConcept SDK. Service Pack 1 in January 2011 added CUDA-assisted encoding on the GPU and HE-AAC. Service Pack 2 landed on 2 November 2011 with around three hundred bug fixes and one change that mattered more than the rest of them put together.

~ the record ~

~ the screen recorder ~

The reason anyone outside a Silverlight shop had Expression Encoder installed was the screen capture. Between roughly 2009 and 2012 the options for recording a Windows desktop were Camtasia if your employer would buy it, or a shareware recorder that stamped a watermark across the output. Expression Encoder Express was free from Microsoft and wrote a clean file, and that was the whole pitch.

The catch was a ten minute limit on recordings, and SP2 removed it in November 2011. I was out of university and working by then, and this is the category of utility you end up with because a colleague sends a link, not because you went shopping for a video product. For about thirteen months Microsoft was quietly shipping the best free screen recorder on Windows, having built it as a side feature of a streaming tool for a plugin that was already losing. OBS arrived in 2012 and took several more years to become the obvious answer, so the gap was real.

~ the extra year ~

On 20 December 2012 Microsoft announced the end of Expression Studio. Blend was folded into Visual Studio. Web and Design went out as free downloads with no further development, and Encoder was discontinued alongside them. Its siblings died that day outright.

Encoder got a stay. Microsoft said Expression Encoder Pro would remain on sale throughout 2013, which made it the last piece of the suite you could still hand money to, a paid product with no roadmap and no successor being sold for twelve more months. The support dates ran on longer still: mainstream support for the Expression 4 line ended on 9 September 2015 and extended support did not close until 15 July 2020, nearly eight years after the announcement that killed it.

~ where the encoding went ~

Microsoft's answer at the time was Windows Azure Media Services, which is the honest explanation for all of it. Transcoding moved off the desktop and into a billable cloud service, and a free tool that ran encoding jobs on hardware Microsoft did not own stopped making any sense to maintain.

Silverlight itself hung on until 12 October 2021, nine years after the tool built to feed it was canceled. Expression Encoder 4 installers are still passed around on archive sites, mostly by people who want the screen recorder and do not care what it was originally for.

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