Hi Mark,

>Given an OLEPUBLIC class within an MTDLL, can more than one instance of that class exist on the _same_ thread?<

Yes, that is possible. For instance, you could create within the same ASP page two instances of this particular class. Due to the threading model, however, Windows serializes calls to those components. That means, while a method in object A is running, only another object on the same thread can call a method of any object. Any other thread can only call any object on this thread when the method in object A has returned.

Theoretically, while your method is running, no-one could do anything else with the thread. The big exception though is that VFP might process windows events (DOEVENTS) which also would execute a pending call.

Christof