Retriving TransientSubscriptions Collection from ICOMAdminCatalog (COM+)

Hi,

I have a problem with removing a transient subscription for a COM+ event.
After I saved the transient subscription for the subscriber, the subscriber
gets the fired events. But I can't remove the transient subsciption for this
subscriber.
The following calls retrive a collection, that is empty
(Collection.Count=0).

Collection:=ICatalogCollection(COMAdminCatalog.DefaultInterface.GetCollectio
n('TransientSubscriptions'));
  Collection.Populate;

Who can help?

Regards Bernd