It looks like the formset base class is even "lighter" than the session base class; if I create a COM object in a .prg based on formset, wouldn't that be even lighter than a session (although all data would be in the default datasession) object?


>You'd have to use FORM as the base class, and there are issues related to UI with the use of forms if you are not careful. Since this is going to be a COM component, being in a VCX is a complete non-issue; you'll be distributing a component (.DLL or .EXE) and not a class library, and if it's intended for use in-proc, it can't have any UI elements.