Cluster-Aware Updating Plug-in Reference
Describes the WMI provider and APIs that you can use to create plug-ins for the Cluster-Aware Updating (CAU) tool. CAU automates the software updating process on clustered servers while maintaining availability. For information about CAU, see Cluster-Aware Updating Overview.
For an example that demonstrates Cluster Aware Updating, please see Cluster Aware Updating plug-in sample.