| 摘要 |
PURPOSE: A method for securing integrity of an execution program by dividing a memory area of a movable disk into a system area and a general memory area, and installing an application program to the system area is provided to need no installing process, and prevent the application program from deformation by virus or other malicious code. CONSTITUTION: When a user uses the application program by inserting the movable disk into a computer, the application program is automatically executed by an automatic execution file(202). When the application is executed, the application program to communicate with the movable disk checks that the computer is connected to the Internet(203). If the computer is connected to the Internet, the application program checks that the new application program is present by connecting to a server. If the new application program is present, the application program is updated/executed by the new application program(205). For execution, the application program checks that an execution environment is the first-loaded movable disk, and the execution is restricted if not.
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