| 摘要 |
A method for conducting a transaction between a client system and a server system is described. The method may include registering information about a particular client system from among multiple client systems. The information is registered on a server system and may include a characteristic specific to the client system being registered. The method may also include purchasing access to the file by the client system from the server system and enabling the file to be accessed only by the client system purchasing access to the file. The access of the file may be enabled based on the characteristic specific to the client system. |
