A control apparatus that controls a wireless communication setting in an information processing apparatus such that the setting can easily be set, without the provision of an additional device in the information processing apparatus. A PC as a control apparatus is USB connected to a printer as an information processing apparatus having a wireless communication function, and controls the setting of wireless communication between a wireless access point and the printer. The printer and the wireless access point are instructed via a USB interface and via a wired LAN by the PC to start the setting of wireless communication. When receiving from each of the printer and the wireless access point a setting result notification that represents a result of execution of the setting of wireless communication, the PC causes a display unit thereof to display the setting result notifications.