"With Silverlight Live Streaming (silverlight.live.com) being discontinued, I thought I’d write up the detailed steps required to host videos using Windows Azure. Since many people who host videos using Silverlight Live Streaming are not technical or development-inclined and rely on the Expression Encoder and Windows Live Writer plug-ins to automate the publishing process, I wrote these posts to suit that audience. In other words, if you can read, understand and follow the steps below, you will be able to host videos on Windows Azure. So don’t be put off by the length and wordiness of these posts – I tried to be explicit to the point of stating the obvious!"
http://expression.microsoft.com/pt-br/ee426933(en-us).aspx?=mexpnl