Automatic or autonomous setup of an application program (e.g., App01.exe) is disclosed. App01.exe is programmed or configured to be installed and run on a portable computing device for communicating with another computer program resident on an appliance over a close-range wireless communication. In some embodiments, upon discovery of the appliance on the close-range wireless communication, the portable computing device autonomously downloads App01.exe from the appliance over the close-range wireless communication. In some embodiments, the portable computing device performs the autonomous download of App01.exe only when App01.exe is not installed on the portable computing device. In some embodiments, the portable computing device autonomously downloads App01.exe over the Internet from a remote server computer that is accessible by the portable computing device with reference to the uniform resource identifier (URI) of the server computer that is provided by the appliance.