JPH02267628A - Check system for program using period - Google Patents

Abstract

PURPOSE:To invalidate a program whose available period already expired by checking automatically the expiring date of the program based on the register information on the expiring date and erasing the program if its available period already expired. CONSTITUTION:When an intra-system registered program 4 is started, the program 4 calls out a check means 6. The means 6 checks whether the expiring date of the program 4 already passed or not based on the register information on the expiring date stored in a storage means 8. If the expiring date does not pass yet, the run of the program 4 is granted. Meanwhile a stop means 5 is called out if the expiring date already passes. Thus the means 5 destroys the program 4 to prevent the run of the program 4 hereafter. As a result, a program whose available period already expired is not available thereafter.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a method for checking the usage period of a program, and in particular, determines the usage suspension date based on the installation date of the program in an information processing system, and thereafter determines the usage suspension date. This invention relates to a method for checking the usage period of a program that allows the use of the program until the usage period of the program is reached.

[Conventional technology]

Conventionally, when a program is provided to a user for a predetermined period of use, such as for trial use, the user or provider deletes the program from the system in use at the end of the period of use. It was necessary to make it unusable.

[Problem to be solved by the invention]

The conventional program usage period check method mentioned above is as follows:
There is a problem in that the only way is for the program provider to delete the program provided to the user at the end of the usage period, or to rely on the user's declaration.

SUMMARY OF THE INVENTION An object of the present invention is to provide a program usage period check method that can automatically disable a program at the end of its usage period.

[Means to solve the problem]

Method for checking the usage period of a program according to the present invention (A) Calculation means for calculating the date on which the use of the program will be stopped based on the installation date when the program is installed in the system used by the information processing system; (C) when the program is started, checking means for checking whether the date on which the program was started reaches the stop date of the program; (D) A stop means for disabling the use of the program when the date on which the program was started reaches the use stop date of the program.

[Example] Next, an example of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram of one embodiment of the present invention.

The method for checking the usage period of a program shown in Figure 1 is that when a program is installed on the system in use, a calculation means 2 calculates the date on which usage will be stopped based on the installation date, and the calculated usage suspension date is stored in the system. A registration means 3 for registering, a checking means 6 for checking whether the suspension date has been reached when the program is started, and a stopping means for disabling the use of the program when the program has reached the suspension date. 5. It consists of a storage means 8 in which the date of suspension of use of the program is stored as suspension date registration information in the system.

Next, the operation will be explained.

When the installation program 1 is started, the program 7 on the installation medium is read, and after being registered in the system to be used as an in-system registration program 4, the calculation means 2
The called calculating means 2 adds a predetermined period of use based on the date at that time, calculates the end of use date, and calls the registration means 3. The called registration means 3 stores the suspension date in the storage means 8 as suspension date registration information in the system, and the processing of the installation program 1 is completed.

After that, when the system registration program 4 is started,
The called checking means 6 checks whether the current date has passed the usage suspension date of the usage suspension date registration information stored in the storage means 8, and if it has not passed, the system Allow internally registered program 4 to run. Also, if it has passed, stop means 5
The called stop means 5 destroys the system registration program 4 in order to prevent the system registration program 4 from running from now on.

In this way, by automatically checking the usage suspension date of the program based on the usage suspension date registration information and erasing the program whose usage period has ended, it is possible to prevent the program whose usage period has ended from being used in the future. can.

Note that as the information processing system used in the present invention, an information processing system including a central processing unit, a main storage device, a data input/output device, and an auxiliary storage device can be used.

〔Effect of the invention〕

As explained above, the present invention automatically checks the usage suspension date of a program based on the usage suspension date registration information and erases the program whose usage period has been completed, so that the program whose usage period has been completed can be used from now on. This has the effect of making it impossible to do so.

[Brief explanation of drawings]

FIG. 1 is a block diagram of one embodiment of the present invention. 1... Installation program, 2... Calculation means,
3... Registration means, 4... In-system registration program, 5... Stopping means, 6... Checking means, 7...
Program on installation medium, 8...Storage means. Agent Patent Attorney Susumu Uchihara

Claims (1)

[Scope of Claims] (A) Calculation means for calculating the date on which the use of the program is to be stopped based on the installation date when the program is installed in the usage system in the information processing system; (B) The calculated use stoppage a registration means for registering a date in the system; (C) a checking means for checking, when the program is started, whether or not the date on which the program was started reaches the date on which the use of the program is stopped; (D) A method for checking the period of use of a program, comprising: a stop means for disabling the use of the program when the date on which the program was started reaches the date on which the use of the program is stopped.