An information processing device capable of communicating with an external device connected thereto via a network and includes an application acquisition unit that obtains an application program to be used to control a function of the external device from an application distribution device present on the network, an external device search unit that searches for external devices on the network and an application execution unit that controls the function of the external device by executing the obtained application program, is provided. The application program obtained by the application acquisition unit includes a function of searching for the external device via the external device search unit, which executes an external device search in response to a request issued from the application execution unit executing the application program.