Server Manager is a new feature in Windows Server 2008 that guides administrators through the process of installing, configuring, and managing Windows Server 2008 roles and features. For more information about Server Manager, see the Windows Server 2008 Server Manager site.
In addition to roles and features that are included with Windows Server 2008 by default, Server Manager enables integration of additional roles and features that are available on the Microsoft Download Center and Windows Update Web sites as optional updates to Windows Server 2008.
One role that is now available as an update is Windows Server Update Services 3.0 Service Pack 1 (WSUS 3.0 SP1).
This update to Server Manager enables full integration of WSUS 3.0 SP1 into Server Manager, allowing installation, configuration, and management of WSUS 3.0 SP1 using the Server Manager console and wizards.
Download here x86 and x64
Related reading: