Execution is provided of at least: the first processing for making the installer software store the group information that relates to information which classifies a plurality of apparatuses into groups and specifies the apparatuses belonging to each group or the address information indicating the location storing this group information, at the time of building the installer software for installing the universal control software that provides universal control of a plurality of the apparatuses; the second processing for notifying about the group information or address information to prompt the group setting of a plurality of the apparatuses when installing the universal control software using installer software; and the third processing for selecting an apparatus as the object of control from among the apparatuses specified by group information acquired from the storage location having been notified or specified by the address information, when universal control software is executed.