COM

public override void ViewContent(string strFilePath)
{
  base.ViewContent(strFilePath);

  Microsoft.Office.Interop.Outlook.Application app = null;
  Microsoft.Office.Interop.Outlook.NameSpace session = null;
  Microsoft.Office.Interop.Outlook.MailItem item = null;

  try
  {
    // Start Outlook.
    app = new Microsoft.Office.Interop.Outlook.Application();
    // Do some voodoo.
    session = app.Session;
    // Get the MailItem we're interested in.
    item = session.OpenSharedItem(strFilePath) as Microsoft.Office.Interop.Outlook.MailItem;

    if(item != null)
    {
      // Set the Dependency properties that the UI has bound to.
      Subject = item.Subject;
      From = item.SenderName;
      if(string.IsNullOrEmpty(item.SenderEmailAddress) == false)
        From += "{" + item.SenderEmailAddress + "}";

      MessageText = item.Body;

      item.Unload += new ItemEvents_10_UnloadEventHandler(item_Unload);

      item.Close(OlInspectorClose.olDiscard);
    }
    // This does not quit the Outlook process we started earlier.
    // If the full Outlook application is running, this line terminates that instead.
    // How can I quit the process I started earlier instead?
    app.Quit();
  }
  catch(Exception)
  {
    // Blah ...
  }
  finally
  {
    if(item != null)
      System.Runtime.InteropServices.Marshal.ReleaseComObject(item);

    if(session != null)
      System.Runtime.InteropServices.Marshal.ReleaseComObject(session);

    if(app != null)
      System.Runtime.InteropServices.Marshal.ReleaseComObject(app);

    item = null;
    session = null;
    app = null;
  }
}

Excel::WorkbookPtr m_ptrDummyWbk;
Excel::WorkbooksPtr ptr_XLWb = m_myExcelPtr->GetWorkbooks();
m_ptrDummyWbk = ptr_XLWb->Add();
m_ptrDummyWbk->PutIsAddin(VARIANT_TRUE);
m_ptrDummyWbk->PutSaved(0,VARIANT_TRUE);

m_ptrDummyWbk->PutSaved(0,VARIANT_TRUE);
HRESULT hr = m_ptrDummyWbk->Close(VARIANT_FALSE);
m_ptrDummyWbk = NULL
ptr_XLWb = NULL;

m_ptrDummyWbk = ptr_XLWb->Add();

Quote:

Unhandled exception at 0x2f430f9f in EXCEL.EXE: 0xC0000005: Access violation reading location 0x0b0231b8.

V_VT(&va.pa[cVariants]) = VT_DISPATCH;
V_DISPATCH(&va.pa[cVariants]) = pME;
++cVariants;