[VBScript]
ReadOnly property ISYSResultList.Clusters as ISYSClusterList

[C#]
IISYSClusterList  ISYSResultList.Clusters {get;}

[ColdFusion/Java]
IISYSClusterList  ISYSResultList.Clusters() throws ComException;

Sub WalkCluster(Cluster, Level)
    Print Space(Level * 2) & Cluster.Name

    For  Each Child in Cluster
        WalkCluster Child, Level + 1
    Next  
End  Sub

WalkCluster ISYSResults.Clusters

Microsoft
    Office
        Word
        Excel
        PowerPoint
    SharePoint
    Windows
        XP
        Vista