EnableLoadWindowPlacement(false) does not work correctly in MFC feature pack by Marc_75

When using EnableLoadWindowPlacement(false) to prevent MFC from restoring the last known main window size and position CMDIFrameWndEx::PreCreateWindow() still reads back the last known window size and position by means of m_Impl.RestorePosition(cs)

BOOL CMDIFrameWndEx::PreCreateWindow(CREATESTRUCT& cs)
{
    m_Impl.SetDockingManager(&m_dockManager);
    m_Impl.RestorePosition(cs);
    return CMDIFrameWnd::PreCreateWindow(cs);
}

workaround:
restore the attributes to the original value CW_USEDEFAULT:
cs.cx = CW_USEDEFAULT;
cs.cy = CW_USEDEFAULT;
cs.x = CW_USEDEFAULT;
cs.y = CW_USEDEFAULT;