| 摘要 |
PURPOSE: An upgrade method for software is provided to prevent illegal duplication and installation of the software by creating a blacklist of licensed products' serial numbers and blocking the upgrade of those products with the serial number listed in the blacklist. CONSTITUTION: An upgrade method for software is composed of reception, verification, confirmation, and installation. User receives patch file through PC connection and runs patch file's installation file. The patch file checks for bugged program and revision programs' versions, and confirms that the revision program's version is higher than the bugged program's version. If revision program's version is lower, installation is halted and alert message is output to the user. If version is higher, program verifies the serial number by displaying a message that reads "input serial number" or automatically detecting the serial number by the program. If serial number confirms the product's authenticity, the serial number is again verified to determine it's not listed on the blacklist. If the serial number is listed on the blacklist, installation process is halted and a message that reads "serial number has been distributed or there has been a program error. Please contact the program vendor" is displayed. If the product is authentic and free from serial number distribution, the program executes delete, addition, and change processes to upgrade itself.
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