>When building a dll you can choose: Single Threaded or Multi Threaded.
>When i build a Multi Threaded dll, COM+ still recognizes the dll as Single Thread Apartment.
>How come?

Multi-threaded apartment (free threaded) is only available using VC++. Multi-threaded in VFP terms is single threaded apartment. Single threaded in VFP terms is not apartment threaded at all.