public void Button1_Click(object sender, EventArgs e)
{
    var comWrapper = new COMWrapper(); // A simple wrapper for a COM object

    Task.Factory
        .StartNew(() => LoadStuff(comWrapper))
        .ContinueWith(() => {
            // Output results...
        });
}

int LoadStuff(COMWrapper w)
{
    return w.LoadStuffFromCOM();
}

int LoadStuffFromCOM()
{
    string buffer;
    IntPtr pointer = Marshal.StringToHGlobalUni(buffer);

    return comObject.GetValue(pointer); // Exception here...
}

initialization
  TTypedComObjectFactory.Create(ComServer, TSomeLogic, Class_SomeLogic,
    ciMultiInstance, tmFree);
end.

initialization
  TTypedComObjectFactory.Create(ComServer, TSomeLogic, Class_SomeLogic,
    ciMultiInstance, tmApartment);
end.