Need to execute a cron job

Your option using WP internals would be to use the HTTP API along with wp schedule event

Create a scheduled event, something like:

register_activation_hook(__FILE__, 'my_schedule');
add_action('execute_my_url', 'do_this_daily');

function my_schedule() {
    $timestamp = //some time you want it to run
    wp_schedule_event($timestamp, 'daily', 'execute_my_url');
}

function do_this_daily() {
    wp_remote_get( '../ =myvideoblog/mvb_main.php&action=processfeed&updatefeed=67', $args);
}

This is a simple example please refer to the codex for additional techniques and/or arguments.

• HTTP API
• wp schedule event

It’s important to note WP cron only triggers when someone visits your WordPress site, fora true stateless cron you would need to use something at the server level or a better wrapper.