>OK. The reason I thought they were interchangeable is that I have seen that I can use both. Actually, about the only case I have used in practice is accessing the .ActiveForm property.
I don't think they overlap in the properties besides .ActiveForm property. Also _VFP has metods and _Screen has none.
>Is it reasonable to expect that accessing the COM interface be slower, because of the COM overhead?
Yes.
--sb--