I love replying to myself... comPlugin0.72_100304.zip.
I can't get most of the MSAA interface to work either, even in C, e.g. HRESULT hr = pIAccessibleParent->get_accChild(varChild, &pdispChild); fails every time. No idea why. Couple of things I can blindly try next week. so I've bypassed get_accChild with local hAOchild2 = hao.get_accessible_child(2) (zero based) e.g. in comPluginDemoScriptAccessibleTest.powerpro
