An information processing device is disclosed that is able to extend functions without performing installation and enables easy function settings. The information processing device is able to communicate with an image forming device, and includes a storage unit for storing basic information of the information processing device; an information acquisition unit for acquiring function information from the image forming device; a function detection unit for detecting a function of the image forming device from the function information; and a storage controller which determines whether function data of the detected function is included in the basic information, and modifies the basic information according to the determination results. When the function data of the detected function is not included in the basic information, the storage controller stores the function data in the storage unit.