void ListViewAccServer::ClearProvider( HWND hControl ) { ATL::CComPtr<IAccPropServices> pAccPropSvc; HRESULT hr = pAccPropSvc.CoCreateInstance(CLSID_AccPropServices, NULL, CLSCTX_SERVER); if (hr == S_OK && pAccPropSvc) { MSAAPROPID propid = PROPID_ACC_HELP; pAccPropSvc->ClearHwndProps(hControl, (DWORD)OBJID_CLIENT, CHILDID_SELF, &propid, 1); } }