[VBScript]
function ISYSEngine.OpenCatalog as ISYSCatalog

[C#]
IISYSCatalog  IISYSEngine.OpenCatalog();

[ColdFusion/Java]
IISYSCatalog  IISYSEngine.OpenCatalog() throws ComException;

<%
dim catalog
set catalog = Application("ISYS").OpenCatalog  
%>