>>One COM object is calling another one. The method called in the 2nd COM is opening a table. When the call returns back to the 1st COM, the table opened is no longer in the scope. Is there any workaround for that?
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>The datasession doesn't cross COM boundaries - if you need to share data between two COM objects, pass an ADO recordset.

Have you ever tried that with PHDBase? :) I don't think it'll work. This relates to isolating the PHDBase process into a COM because of an actual problem of PHDBase. So, the object is to process the searches only. And, the actual syntax of PHDBase won't support that. Unless someone has found a way.