| 摘要 |
<p>Software time lending can be performed without connecting to a network all the time. When a user connects a client computer (3) via the network (2) to a server (1) and inputs a user authentication data, software identification data, and a desired use time, the server (1) performs authentication of the user according to a user information database A. When the authentication is performed without any problem, a prepaid file B containing software identification data, use allowed time data, and user authentication data is issued. The prepaid file B issued is downloaded to the client computer (3), analyzed by a utility program E introduced in advance, and written into a prepaid operation file G. Unless the allowable use time concerning the corresponding software identification data is 0, the allowable use time concerning the acquired prepaid file is added to this.</p> |
