Windows Vista Service Pack 2 and Windows Server 2008 Service Pack 2
Overview from Microsoft site
“Windows Server® 2008 Service Pack 2 and Windows Vista® Service Pack 2 include all the previously released updates for Windows Server 2008 and Windows Vista Service Pack 1. This document contains the list of Hotfixes and Security Updates in Windows Server 2008 SP2 and Windows Vista SP2. Many of these updates are available to the public on the Microsoft® Download Center and Windows® Update, while others are only available to specific customers or partners. It is a standard practice to include all of these updates in a service pack, and they are included in Windows Server 2008 Service Pack 2 and Windows Vista Service Pack 2.”