How can I get a list of all the com+ components of a com+ application?

[Kat]

I am trying to work with COM+ using c# and ASP.NET. I have been following an example, however part of it fails.\[code\]dynamic oCatalog = Activator.CreateInstance(Type.GetTypeFromProgID("ComAdmin.COMAdminCatalog"));/* Get the Applications collection and populate it */dynamic applicationInstances = oCatalog.GetCollection("Applications");applicationInstances.Populate();foreach (dynamic applicationInstance in applicationInstances) { Response.Write("<p>" + applicationInstance.Name.ToString() + "-" + applicationInstance.Key.ToString() + "</p>"); dynamic objComponents = oCatalog.GetCollection("Components", applicationInstance.Key); objComponents.Populate(); foreach(dynamic Components in objComponents) { Response.Write("<p>" + Components.Name.ToString() + "</p>"); } }\[/code\]When the above call oCatalog.GetCollection("Components", applicationInstance.Key) is called I get the error: \[quote\] System.Reflection.TargetParameterCountException: Error while invoking GetCollection.\[/quote\]How can I get a list of the current components in an application instance?