If you have been using Microsoft Expression Encoder to create Silverlight video applications, you might have heard that it had a command-line interface for automation. I took this interface and wrapped it in a Windows Workflow Activity so you can easily automate Expression Encoder in your media workflow. I have posted the source code on Popfly for anyone to see and tomorrow I am demonstrating and presenting it in a free webinar. If you want to learn about creating Windows Workflow activities and/or Expression Encoder, you should attend. If you can't attend, a recording will be posted shortly after here.