connect til Excel

Jeg starter Excel op fra C++ Builder via COM:

try
  {
    try
    {
      // connect to Excel
      ExcelApplication1->Connect();

    }

    catch (Exception& exception)
    {
      MessageDlg("Excel may not be installed", mtError, TMsgDlgButtons() << mbYes, 0);
      Abort;
    }
    ExcelApplication1->Visible[lcid] = True;
    try
    {
      //Open
      ExcelApplication1->Workbooks->Open(StringToOleStr(excelFile));
      ExcelWorkbook1->ConnectTo(ExcelApplication1->ActiveWorkbook);
    }
    catch (Exception& exception)
    {
      //Create new
      ExcelApplication1->Workbooks->Add(xlWBATWorksheet,lcid);
      ExcelWorkbook1->ConnectTo(ExcelApplication1->ActiveWorkbook);
      ExcelWorkbook1->SaveAs(excelFile,xlWorkbookNormal,"","",False,False,xlNoChange,
            xlLocalSessionChanges,true,0,0,lcid);
    }


Problemet er når jeg stopper applikationen, stopper Excel også - ligemeget om excel var startet før applikationen eller ej.
Er der mulighed for at connecte til Excel og disconnecte uden Excel stopper ?
//Tommy