A method of fulfilling a request for information content with a user-selectable version of a file containing that information content. Selection of a hyperlink to information content results in generation of a menu of versions of files containing that information content. The menu displays options for versions which are derivable therefrom by a computer program for converting files from one version to another version. Selection of an option for a materialized version results in transmission of the materialized version. Selection of an option for a version which is not materialized results in derivation of the user-selected version from either a materialized version or any other version from which the user-selected version may be derived. Apparatuses for carrying out the inventive method are also provided.