Thanks for the reply.
I was following the example in the remote control doc:
<?php
require_once 'jsonRPCClient.php';
define( 'LS_BASEURL', 'http://localhost/limesurvey/'); // adjust this one to your actual LimeSurvey URL
// instanciate a new client
$myJSONRPCClient = new jsonRPCClient( LS_BASEURL.'/admin/remotecontrol' );
in my admin (localhost/limesurvey/application/controller/admin) folder, there is a file called remotecontrol.php, didn't see a folder called remotecontrol
there is a remotecontrol folder under ..../views/admin
The version of Limesurvey is 2.0+
Thanks