| 摘要 |
PROBLEM TO BE SOLVED: To reduce the load of the provider of software even when the software is optioned for each function, and sold according to the combination of each function. SOLUTION: Information indicating whether a plurality of functions of software are available or unavailable, that is, enciphered information on available/ unavailability of the functions is preliminarily recorded in a computer readable recording medium, and the information on availability/unavailability of the functions is read and held by a computer, and the function which is judged to be available from the information on availability/unavailability of the functions is installed in the hard disk of the computer, and any function which is judged to be unavailable from the information on availability/unavailability of the functions is not installed in the hard disk of the computer. |
