Hotfix improves how Windows Server 2008 Failover Cluster works with Hyper-Vhttp://blogs.technet.com/josebda/archive/2008/08/06/hotfix-improves-how-windows-server-2008-failover-cluster-works-with-hyper-v.aspxIf you work with Windows Server 2008 Hyper-V and Windows Server 2008 Failover Clustering, you should check a new update called "Increased functionality and virtual machine control in the Windows Server 2008 Failover Cluster Management console for theen-USCommunityServer 2.1 SP1 (Build: 61025.2)