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.
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.