| 摘要 |
The present invention relates to a method and a system for preventing unauthorised use of computer programs in electronic commerce. The method comprises the steps of: the user identifying himself to the sales point via the computer network; the sales point acknowledging the identification via the computer network; the user ordering a program via the computer network; the program ordered being downloaded into the user's computer; the program, upon execution, reading at least one code stored in a portable data carrier or in a memory in the user's computer and comparing this at least one code with a unique code for the program; and the program being terminated or one or more program functions in the program being unusable if the comparison step does not result in agreement between the codes compared; or the program being perfectly usable if the comparison step results in agreement between the codes compared. |
