Known issues: SQL Server Cluster and standalone Setup
A failure was detected for a previous installation, patch, or repair during configuration for features [SQL_PowerShell_Engine_CNS,SQL_PowerShell_Tools_ANS]. In order to apply this patch package (KB968369), you must resolve any issues with the previous operation that failed.
Problems occur in Windows Server 2008 after you uninstall a SQL Server 2005 failover cluster, or after you install SQL Server 2005 Service Pack 2 or a Service Pack 2-based hotfix on a SQL Server 2005 failover cluster
You receive a warning message on the System Configuration Check page of the SQL Server 2005 Setup program on a computer that is running Windows Vista or a Server Core installation of Windows Server 2008