[VBScript]
ReadOnly property ISYSCatalogList.Item(long Index) as ISYSCatalogItem

[C#]
IISYSCatalogItem  ISYSCatalogList.get_Item(
  long Index);

[ColdFusion/Java]
IISYSCatalogItem  ISYSCatalogList.Item(
  long Index
) throws ComException;