Abstract: A contents additional services inquiry server for receiving inquiries for additional services provided by a contents center and a third-party contents additional services providing server, wherein a registration request specifies a contents identifier uniquely identifying contents, and requests registration of registration request information including each additional service information regarding service that can be provided with respect to the contents having the contents identifier and provider location information regarding a location of a respective provider of each additional service. Registration request information registered by the contents center and registration request information registered by the third-party contents additional service providing server are separately stored.

Abstract: It is configured such that, on a server for carrying out the inquiry of additional services, in correspondence to a contents identifier embedded in the contents, an information of additional services provided for the contents having that contents identifier and a location information of their providers are stored in advance by separating those operated by the contents center and those operated by the other third parties, and according to that, what sorts of things are there as the additional services provided by the contents center (and the location information of their provider) and what sorts of things are there as information of the additional services provided by the other third parties (and the location information of their providers) are presented in a form that distinguishes them.