It shouldn't (which is probably why you're asking). Opening non-standard ports presents too much opportunity for abuse on the Free Hosting service. A lot of things do, so the service is locked down pretty tight. Most of the restrictions are either not in place or are user-configurable on the paid services, but since there are no real consequences other than suspension of a free service on Free Hosting, there's a real need to keep things buttoned up very tight in order to keep the servers off of abuse lists.