An effective environment can be freely constructed in which multifunctional processing equivalent to high performance multifunction peripherals can be executed easily at low cost, by utilizing the print function of a printer driver as well as by selectively utilizing the functions of peripheral devices. In a print system environment where a print job can be issued to a printer 150 through a printer driver 203, the printer driver 203 communicates with predetermined peripheral devices thereby to search them for information of a peripheral device that can execute a substitute function processing, and updates the display of a print setting screen of the printer driver so as to allow utilization of a predetermined substitute function, in accordance with the retrieved substitute function information.