连接sybase时候的一个有关问题

连接的字符串为：#define SYBASE_STRING "Provider=Sybase.ASEOLEDBProvider.2;Initial Catalog=%s;Password=%s;User ID=%s;Data Source=%s;Persist Security Info=True"m_pConnection.CreateInstance("ADODB.Connection");          m_strAdoConn.Format(SYBASE_STRING,strDBName,strPwd,strUID,strSerName);        m_IsConnectionOpen = FALSE;      if(m_pConnection != NULL)    {        HRESULT hr;        try        {            m_pConnection->PutConnectionTimeout((long)5);                                                hr = m_pConnection->Open(_bstr_t(m_strAdoConn) ,_bstr_t(L"") ,_bstr_t(L""),adModeUnknown);            if (SUCCEEDED(hr))            {                m_IsConnectionOpen = TRUE;                TRACE("Êý¾Ý¿âÁ¬½Ó³É¹¦!");                return TRUE;            }                    }        catch( _com_error &e )        {            //Get info from _com_error            _bstr_t bstrSource(e.Source());            _bstr_t bstrDescription(e.Description());                                [color=#FF0000]//此处捕获的异常为：Cannot open file 'C:\Sybase\OLEDB\192.169.1.115.ids'." (1)[/color]            TRACE("cccException thrown for classes generated by #import");            TRACE("\tCode = %081x\n", e.Error());            TRACE("\tcode meaning = %s\n", e.ErrorMessage());                    TRACE("\tSource = %s\n", (LPCTSTR)bstrSource);            TRACE("\tDescription = %s\n", (LPCTSTR)bstrDescription);            TRACE("++++++");                        char sLog[1024];            sprintf(sLog, "%s%081x%s%s%s", "Exception thrown for classes generated by #import", e.Error(), e.ErrorMessage(), (LPCTSTR)bstrSource, (LPCTSTR)bstrDescription);        }        catch(...)        {            TRACE("*** unhandled Exception ***");        }    }