activex plugin causes claim destroy concentration exit vs2008

activex plugin causes claim destroy concentration exit vs2008

my mfc concentration controlling "esri mapobjects lt2" activex plugin throws an claim during me shutting it.
the blunder occurs cmdtarg.cpp:

ccmdtarget::~ccmdtarget()
{
#ifndef _afx_no_ole_support
    (m_xdispatch.m_vtbl != 0)
        ((coledispatchimpl*)&m_xdispatch)->disconnect();
    assert(m_dwref <= 1); //<--- fails since m_dwref 3
#endif
    m_pmodulestate = null;
}

i built (native c++) concentration vc9.
when i accumulate concentration vc6, behaves nicely.

what reason this?

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