We will be adding a new product family to your WSUS server – Microsoft Application Virtualization.  The Microsoft Application Virtualization product family will include updates for all Microsoft Application Virtualization products. It will include a variety of update types, e.g. service packs, optional updates, critical updates and security updates.  Additionally, Microsoft Application Virtualization updates will be available through Microsoft Update and the Microsoft Update Catalog http://catalog.update.microsoft.com.

A new product category will be added to your WSUS server under the Microsoft Application Virtualization family, entitled Microsoft Application Virtualization 4.5. The Microsoft Application Virtualization 4.5 category will allow all classifications of updates to be offered to the Microsoft Application Virtualization 4.5 product.  You will see this new category when new updates are available for this product.

You should sync the Microsoft Application Virtualization family if you have these products in your managed environment. For additional information about Microsoft Application Virtualization see: http://www.microsoft.com/systemcenter/appv/default.mspx. 

There will be two new product categories added to your WSUS server under the existing Forefront family.  Forefront Security for Exchange Server will be used for updates that apply to Forefront Security for Exchange Server version 10.1 (and later).  Forefront Security for SharePoint will be used for updates that apply to Forefront Security for SharePoint version 10.2 (and later).  These two new categories, and applicable updates, are scheduled to be available the second week of May.