The CLUSCTL_GROUP_UNKNOWN control code indicates a request for an unknown operation. ClusterGroupControl always returns ERROR_SUCCESS when the dwControlCode parameter is set to this code.
| Type: | External |
| Access: | CLUS_ACCESS_READ |
| Input: | None |
| Output: | None |
| Global: | CLUS_NOT_GLOBAL |
| Modify: | CLUS_NO_MODIFY |
| Control Code: | CLCTL_UNKNOWN |