In the next few weeks, we are adding a new category to your WSUS server – Expression Media 2. The category belongs to the Microsoft Expression product family. The category will include updates for Expression Media 2, including service packs, optional updates, and critical or security updates. For additional information on Expression Media Products see: http://www.microsoft.com/expression/products/overview.aspx?key=media. These updates will be available through the Microsoft Update Site, and (depending your on settings ) via Automatic Update, and to Windows Server Update Services (WSUS).
We recommend WSUS admins having Expression deployments in their corporation; select this new product category to synchronize associated update classifications of your choice. Additionally, Expression updates will be available from the Microsoft Update Catalog http://catalog.update.microsoft.com.
The WSUS Team