Abstract: A method for automatically installing an application into a personal computer is provided herein. The personal computer has a port actuated by a first driver in the personal computer. The method includes steps of: (a) detecting whether a mobile device is electrically coupled to the port of the personal computer through a USB cable including a memory which stores the application; (b) installing the application including a second driver in the personal computer to substitute for the first driver to control the port; (c) sending a command to the mobile device to make the personal computer as an accessory device for the mobile device based on the second OS system; (d) detecting whether the mobile device has a predetermined program; (e) downloading and installing the predetermined program in the mobile device; and (f) transmitting and installing the predetermined program into the personal computer.

Abstract: The invention provides a method for installing an application into a handheld computer and a personal computer, which are connected to each other. The method includes the steps of: a) connecting the handheld computer to the personal computer with a USB cable with a memory in which an ADK utility application is stored; b) installing the ADK utility application to the personal computer; c) directing the handheld computer to a specific website; d) downloading a specific program including a personal computer version and a handheld computer version; e) installing the handheld computer version of the specific program into the handheld computer; and f) installing the personal computer version of the specific program into the personal computer.