+System.DirectoryServices.ActiveDirectory/ReadOnlyActiveDirectorySchemaClassCollection.cs
+System.DirectoryServices.ActiveDirectory/ReadOnlyActiveDirectorySchemaPropertyCollection.cs
+System.DirectoryServices.ActiveDirectory/ReadOnlyDirectoryServerCollection.cs
+System.DirectoryServices.ActiveDirectory/ReadOnlySiteCollection.cs
+System.DirectoryServices.ActiveDirectory/ReadOnlySiteLinkBridgeCollection.cs
+System.DirectoryServices.ActiveDirectory/ReadOnlySiteLinkCollection.cs