C / C++ / MFC

//Socket created and connected with server application
pSocket->creat();
pSocket->Connect(IPaddr,Port);

m_File = new CSocketFile(pSocket);
m_pArchIn = new CArchive(m_File,CArchive::load);
m_pArchOut = new CArchive(m_File,CArchive::store);

void SendDataToServer( )
{
  CTransData oData;       // deriver from CObject class
  oData.m_sListOut.AddTail(sPackData);
  pSocket->SendData(&oData);
}

void SendData(CTransData *pData)
{
  if (m_pArchOut != NULL)
  {
	TRY
	{
	   pData->Serialize(*m_pArchOut);
	   m_pArchOut->Flush();
	}
	CATCH(CFileException, e)
	{
	  m_pArchOut->Abort();
	  delete m_pArchOut;
	  m_pArchOut = NULL;
	}
	END_CATCH
  }

}

CTransData.cpp

void CTransData::Serialize(CArchive& ar)
{
   if (ar.IsStoring())
   {
       ar.WriteObject(&m_sListOut);     // In This Line I get Error
   }
   else
  {
      m_sListIn = (CStringList*)ar.ReadObject(RUNTIME_CLASS(CStringList));
  }

}

IDispatch * pDisp = GetHtmlDocument();

BOOL CDemoDlg::OnInitDialog()
{
    CDialog::OnInitDialog();

    // Set the icon for this dialog.  The framework does this automatically
    //  when the application's main window is not a dialog
    SetIcon(m_hIcon, TRUE);         // Set big icon
    SetIcon(m_hIcon, FALSE);        // Set small icon

    // TODO: Add extra initialization here
    CRect rect;
    GetClientRect(rect);
    CWnd wnd;
    BOOL bRet = wnd.CreateControl(_T("WMPlayer.OCX"), NULL, WS_VISIBLE, rect, this, 19089);

    return TRUE;  // return TRUE  unless you set the focus to a control
}

wnd

m_hWnd