Is this a case of "who does God pray to?" No, my oApp was top most in my hierarchy in the situation I'm basing this discussion on. Which is specifically about managing toolbar members of an app object (in a nutshell).

And, as for custom, I had read that using a line class was the lightest weight base class to use for an app object. So, I pretty much use that when I can.

>Normally, oApp is instanciation of Custom class. Surely, you can use formset or whatever, it doesn't prevent using CreateObject :). Also, note that real application hierarchy is not just oApp and all other objects under. It may include few more levels (modules) each linked to the higher one. You are not going to have chain of formsets, are you?