急！！（evc4.0＋ado3.1）create database 不成功

[shitatang]

程序段如下：
hr=CLSIDFromProgID(g_szADOCE30ConnProgID,&tClsid);
hr= CoCreateInstance(tClsid,NULL,CLSCTX_INPROC_SERVER|CLSCTX_LOCAL_SERVER,IID_Connection,(LPVOID*)&m_pADOCEConn);
hr=m_pADOCEConn->put_Provider(TEXT("cedb"));
hr=CLSIDFromProgID(g_szADOCE30RSProgID,&tClsid);
hr= CoCreateInstance(tClsid,NULL,CLSCTX_INPROC_SERVER|CLSCTX_LOCAL_SERVER,IID_Recordset,(LPVOID*)&m_pADOCERS); //以上都已成功

wcscpy(szSqlBuf,_T("CREATE DATABASE'\test.cdb'"));
VariantInit(&varTSQL);
VariantInit(&varEmpty);
varTSQL.bstrVal = SysAllocString(szSqlBuf);
varTSQL.vt = VT_BSTR;

hr=m_pADOCERS->Open(varTSQL, varEmpty, MSADOCE::adOpenDynamic,MSADOCE::adLockOptimistic,MSADOCE::adCmdText);
//此处create database失败

不知道哪里出错，忘指教！！！