JP2002229790A - Program composing method, program composing program, fraudulent use preventing function adding method, and fraudulent use preventing function adding program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a program composing method capable of simply adding a new function to be executed prior to a process by an optional application program described with an execution form to the application program. SOLUTION: The contents of the optional application program described with the execution form are added to the end of the contents of an additional function program described with the execution form by the program composing method. The additional function program duplicates the application program added with its function after a process to realize its function on a computer, executes the duplicated application program, and deletes the duplicated application program when the execution of the duplicated application program is finished.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a program synthesizing method for synthesizing a program for adding a new function to an arbitrary application program to the application program, and a method for illegally using an arbitrary application program. The present invention relates to a program for adding an unauthorized use prevention function for adding a function for preventing the application program to the application program.

[0002]

2. Description of the Related Art Generally, a new function (for example, an illegal copy protection function and a release function thereof) to be executed for an existing application program described in an executable form such as a binary before the processing by the application program is performed. In many cases, it is necessary to modify a source program described in a text format in a predetermined language to create a new source program.

In particular, when a plurality of application programs are sold, a license key uniquely assigned to each product of each application program and a license key determination are performed in order to limit the use of each application program to only each purchaser. When adding a function or a use restriction release function to each application program, it may be necessary to modify the source program of each software one by one to add a license key and each function.

[0004]

However, even if an attempt is made to add a new function to an existing application program, if the application program has been created by another person or if a sufficient period has elapsed since its development. In some cases, the source program could not be obtained. Even if the source program of an existing application program is available, if the person who intends to modify the source program does not have the knowledge, new functions cannot be added to the application program. Even so, new failures (bugs) are often caused, and cost and time are required.

[0005] When a new function is added to the application program, the application program is configured so that the application program is executed by an application program that realizes the new function, or a batch program that executes both application programs sequentially. A file can be formed, but in this case, each time a function is added, the number of files having a file name different from the file name of the application program is increased.

[0006] According to the above-described method for preventing unauthorized (illegal) use using a license key, the problem is that the application program can be repeatedly installed on a plurality of computers if an accurate license key is used. was there. Therefore, an application program having the same license key can be executed simultaneously on a plurality of computers.

[0007] Furthermore, a method has been proposed for monitoring unauthorized use or installation by notifying a host computer or a server connected via a network of a license key included in an application program. It costs money and time to build.

[0008] The present invention has been made in view of the above-mentioned problems of the prior art, and the first problem is that:
A program synthesizing method and a program synthesizing program capable of easily adding a new function to be executed prior to a process by an arbitrary application program described in an execution format to the application program, and The second problem is that an unauthorized use prevention function adding method and an unauthorized use prevention function addition program that can easily add a function for preventing an arbitrary application program described in an executable form from being used illegally to the application program. Is to provide.

[0009]

According to the present invention, which is configured to solve the first problem, an optional application program described in an executable format is added to the end of the content of an additional function program described in an executable format. A program synthesizing method for generating a synthesized application program by adding contents of the programs, wherein the additional function program causes a computer to perform processing for realizing a predetermined function, and after the processing, causes the computer to execute the processing. On the other hand, a part other than the self is duplicated from the synthesized application program including the self, the application program corresponding to the duplicated part is executed, and when the execution of the application program ends, the application program is deleted. That the program To.

With the above configuration, the contents of the additional function program and the contents of any application program, both described in the executable form, are simply added in this order. When the completed application program is executed by the computer, the processing by the part of the additional function program in the synthesized application program is executed first, and the processing by the part of the application program is not executed.

When the synthesized application program is executed by a computer, a process for realizing a predetermined function is performed by a part of the additional function program executed first, and the additional function program of the synthesized application program is executed. After the part other than the part is copied, an application program corresponding to the copied part is executed. When the execution of the copied application program ends, the copied application program is deleted.

As described above, since the additional function program has a function of causing the computer to execute a function to be added to the application program, it always executes the processing by the application program. According to the program synthesizing method of adding the content of an arbitrary application program to the end of the content, a new function can be easily added without modifying the source program of the application program. Also, if there is an application program written in an executable format, functions can be directly added to the application program. Therefore, it is not necessary to obtain the source program. ) Does not occur. Further, it is possible to easily add another function to the application program without any knowledge about programming.

A program synthesizing program according to the present invention is a synthesizing program constituted by adding the contents of an arbitrary application program described in an executable form to the end of the contents of an additional function program described in an executable form. A program synthesizing program for causing a computer to generate a used application program,
The additional function program causes the computer to perform processing for realizing a predetermined function, and after the processing, causes the computer to copy a portion other than the self from the synthesized application program including the self, and the copied An application program corresponding to the portion is executed, and when the execution of the application program ends, the application program is deleted.

Therefore, by using this program synthesizing program, the computer can function as an apparatus for realizing the above-described program synthesizing method of the present invention.

Further, according to the present invention, which is configured to solve the second problem, an arbitrary application program described in an executable form is added to the end of the contents of the unauthorized use prevention program described in an executable form. A plurality of synthesized application programs configured by adding the contents are generated, and identification information for enabling the synthesized application programs to be identified from each other is provided by an unauthorized use prevention program among the synthesized application programs. And a method for adding an unauthorized use prevention function to a computer connected to another terminal device via a LAN.
N to all terminal devices on N periodically.
When the identification information is transmitted from any of the terminal devices on N, the identification information is compared with the identification information added to itself, and only when the identification information does not coincide with the identification information in the synthesized application program including itself. From the other, the application program corresponding to the duplicated part is executed, and when the execution of the application program is completed, the duplicated application program is deleted. The program is a program for forcibly terminating the processing by the duplicated application program when they match.

With the above configuration, the executable form unauthorized use prevention program to which the identification information is added and the arbitrary application program in the executable form are added in this order, and thus the program is the added program. When the synthesized application program is executed by the computer, the processing by the additional function program portion of the synthesized application program is executed first, and the processing by the application program portion is not executed.

When the synthesized application program is executed by a computer connected to another terminal device via the LAN, the processing by the part of the unauthorized use prevention program executed first is added to itself. The identification information is periodically transmitted to all terminal devices on the LAN. Further, when identification information is transmitted from any terminal device on the LAN, the identification information is compared with the identification information added to itself, and when the identification information does not match, the combined application A portion other than the unauthorized use prevention program is copied from the program, an application program corresponding to the copied portion is executed, and the application program is deleted when the execution of the application program ends. On the other hand, when the identification information transmitted from any of the terminal devices matches the identification information of the terminal device, the process by the copied application program is forcibly terminated.

Thus, when the synthesized program to which the same identification information is added is used in a plurality of terminal devices on the LAN at the same time, execution of the copied application program is compulsory in all the terminal devices. Will be terminated. Therefore, a plurality of terminal devices on the LAN do not simultaneously execute the combined program to which the same license key is added.

Further, according to the method for adding an unauthorized use prevention function by adding the contents of an arbitrary application program to the end of the contents of the unauthorized use prevention program, the unauthorized use prevention can be easily performed without modifying the source program of the application program. Features can be added. Furthermore, if there is an application program written in an executable form, an unauthorized use prevention function can be directly added to the application program, so that the source program does not have to be available, and the source program can be modified. No failure (bug) occurs, and an unauthorized use prevention function can be easily added to an application program without knowledge of programming.

The program for adding an unauthorized use prevention function according to the present invention provides a computer with the contents of an arbitrary application program described in an executable form at the end of the contents of the unauthorized use prevention program described in an executable form. A plurality of synthesized application programs are generated by adding together, and identification information for enabling each synthesized application program to be identified from each other is included in a portion of the unauthorized application prevention program in each synthesized application program. A program for adding an unauthorized use prevention function to a computer connected to another terminal device via the LAN, the identification information added to the computer being connected to another terminal device via the LAN. Periodically send to all terminal devices When the identification information is transmitted from any of the terminal devices on the LAN, the identification information is compared with the identification information added thereto, and only when the identification information does not match, the synthesized application program including the self is included. From the other, the application program corresponding to the duplicated part is executed, and when the execution of the application program is completed, the duplicated application program is deleted. The program is a program for forcibly terminating the processing by the duplicated application program when they match.

Therefore, by using this program for adding an unauthorized use prevention function, a computer can be made to function as an apparatus for implementing the above-described method for adding an unauthorized use prevention function of the present invention.

Incidentally, the unauthorized use prevention program includes:
When the computer inputs the identification information, the computer compares the identification information with the identification information added to the computer. May be duplicated.

[0023]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A program synthesizing method according to the present invention is such that a new function to be executed prior to processing by an application program already completed as a product can be easily added to the application program. is there. In summary, the above-described program synthesizing method adds an additional function program that causes a computer to perform processing for realizing the above-described new function to an application program that has already been completed as a product, thereby adding the program to the application program. Is done. The synthesis of such a program is performed by using a program that causes a computer to perform the synthesis, and the program for synthesizing the program is a CD.
-Stored in a storage medium such as a ROM disk or the like, and sold to, for example, a software creator who has created the application program or a distributor thereof. The vendor or the like who purchased the program for synthesizing the program installs the program on each computer, thereby synthesizing the program, that is, adding a new function to the completed application program. It is possible to provide an end user with an application program to which a new function is added by the implementation.

There are various new functions to be added to the completed application program. In the following, the new functions to be added to the application program are based on illegal (illegal) use of the application program. An embodiment when the function is a prevention function will be described with reference to the drawings. However, in the following description, first, the contents of the processing for adding the unauthorized use prevention function to the application program will be described with reference to FIGS. 1 to 6, and thereafter, the application program with the added unauthorized use prevention function will be executed. The contents of the processing when the processing is performed will be described with reference to FIGS.

As a computer for executing a process for adding an unauthorized use preventing function to an application program, a generally commercially available computer having an input device such as a keyboard and a mouse, a display for displaying various screens, and a main body is used. Can be used. As shown in the schematic configuration diagram of FIG.
U11, RAM12, hard disk drive (HD
D) 13, a floppy (registered trademark) disk drive (FDD) 14, a CD-ROM drive 15, and other hardware are the main components.

The CPU 11 is a central processing unit for integrally controlling each hardware, and the RAM 12 is a random access memory that caches various programs read by the CPU 11 and expands a work area of the CPU 11. is there.

The HDD 13 has an operating system (O / O) for managing the execution of application programs or performing system management such as network management.
S) In addition to storing programs, application programs and data for realizing various functions are stored.

The various programs stored in the HDD 13 include an unauthorized use prevention program (corresponding to an additional function program) for causing a computer to execute a process for realizing an unauthorized use prevention function and other processes described later. And a synthesizing program (corresponding to a program synthesizing program and a program for adding an unauthorized use preventing function) for synthesizing the unauthorized use preventing program into a completed application program. In the following,
A program that combines the unauthorized use prevention program described in the executable format and the application program described in the executable format is referred to as a “combined application” for convenience.

The various programs stored in the HDD 13 are used to generate license keys, which are information for uniquely identifying each of the plurality of synthesized applications generated in the processing by the above-described synthesis program. Is also included.

FDD 14 and CD-ROM drive 15
When installing various programs and data, or an upgraded version thereof, a floppy disk (computer-readable medium) 16 or a CD-ROM disk (computer-readable medium) 17 storing a new program is set therein. Programs and data are read from the floppy disk 16 or the CD-ROM disk 17. The various programs and data thus read are installed in a storage device such as the HDD 13.

The unauthorized use prevention program, the synthesizing program, and the license key generation program stored in the HDD 13 are stored in the floppy disk 16 or the CD-ROM disk 17 in which the programs are stored in the FDD 14 or the CD-ROM drive 15. By being read from the drives 14 and 15, the HDD 13
May be installed.

Next, a license key generation process executed by the computer 10 will be described. In addition, HDD
CPU 1 that has read and executed the OS program in
1 reads out and executes the license key generation program in the HDD 13 so that the computer 10
Can perform a license key generation process. After the license key generation process starts, the CPU 1
1 displays a license key generation screen on a display.

This license key creation screen is a screen used to create the license key.
The license key created here is obtained by performing an encryption process by a predetermined logic on a user code generated based on the information input on the license key creation screen. The user code is
A character string arbitrarily defined by an operator of the computer 10 (such as the above-described software creator or its distributor) to specify a production company or a product name of the application program, and a character string of the synthesized application as a serial number. It consists of a number string that is a serial number for giving information, and a number string that indicates the use period and the expiration date of the license key.

This will be described more specifically. FIG. 2 shows an example of a license key creation screen displayed on the display of the computer 10. As shown in FIG. 2, the license key creation screen 20 includes a plurality of text boxes 22a to 22k for inputting character strings constituting a user code, and the text boxes 22a to 22k.
The user generates a user code based on the character string input to 22k and generates a license key based on the user code. 5 is a screen showing a text box 24 for inputting a file name of a user code file for storing data of a generated user code and a license key. In the lowermost column of the license key creation screen 20, text boxes 25a and 25b used for confirming a conversion state from a user code to a license key or a conversion state from a license key to a user code and their conversions are displayed. Arrow buttons 26a and 26b that the operator should click when performing the operation are also shown.

Here, the above license key creation screen 2
0, the text box 22a is for inputting a character string as information (company code) for identifying the production company of the application program.
b is for inputting information (product code) for identifying the application program as a product, and the text box 22c is for entering information (version code) for identifying the number of times of change or improvement of the contents of the application program. ), And the text box 22d is for inputting a character string as information (other codes) arbitrarily defined by the operator for identification. The text box 22e is for inputting the start number (natural number) of the first serial number, and is used for inputting the text box 22f.
Is for inputting the number of first serial numbers generated in ascending order by a natural number 1 from the start number. The text box 22g is the start number of the second serial number, and the text box 22h is the second serial number. Is used to input the number of generated serial numbers. Further, the text boxes 22i and 22j are for inputting the use start year and month of the license key, respectively, and the text box 22k is for inputting the expiration date from the start year and month.

By the way, this license key creation screen 2
0 is provided with a plurality of check boxes 21a to 21g in order to allow the operator to select whether or not to incorporate the character string or the number string entered in the text boxes 22a to 22k into the user code. ing. Specifically, each of the check boxes 21a to 21g includes a company code, a product code, a version code, other codes, a first serial code as a first serial number, a second serial code as a second serial number, and For example, when the user code is to be configured to include only three codes of the product code, the other code, and the first serial code, only the check boxes 21b, 21d, and 21e are required. Click to enter a check mark. Thus, by selecting some arbitrary codes from the above seven types of codes, the operator can create a user code based on an original definition. The length of the character string of the entire user code can be adjusted by increasing or decreasing the number of codes used for the user code and the number of character strings input to the check boxes 22a to 22k.

For example, in a case where ten user codes having serial numbers from “0” to “9” are created, each user code includes a company code composed of a character string “AAA” and “ Product code consisting of the character string "GK" and "0
In order to include a version code consisting of a character string of "3" and make these user codes usable indefinitely from October 2000, first, check boxes 21a to 21c for company code, product code and version code. And first serial code check box 21e and expiration date check box 21g
Click to enter a check mark (do not enter in the other check boxes 21d and 21f), and enter "AAA" and "G" in the text boxes 22a to 22c of the company code, product code and version code, respectively.
K ”and“ 03 ”. Also, enter “00” in the text box 22e of the start number of the first serial code,
Enter "10" in the generation number text box 22f, and enter the start date and expiration date text box 2f.
In each of 4a to 24c, the user inputs "indefinite" from "10" month of "2000".

When the operator inputs the file name of the user code file in the text box 24 and clicks the generation button 23 after the license key creation screen 20 is entered in this way, the CP
U11 generates a character string of the user code and a character string of the license key obtained by performing an encryption process on the character string of the user code by a predetermined logic (in the example described above, ten license keys are generated). , All data is stored in the user code file having the file name shown in the text box 24.

FIG. 3 shows an example of data stored in the user code file. As shown in FIG. 3, in the user code file, the user code and the license key based on the user code are described on the same line so that the user code and the license key are associated with each other. And have been saved.

The CPU 11 of the computer 10
After generating such a user code file, the license key generation process ends.

Next, the synthesizing process executed by the computer 10 will be described. Note that the CPU 11 that has read and executed the OS program in the HDD 13
By reading and executing the combining program in the computer 3, the computer 10 can perform the combining process. The compositing process will be described in detail later. In short, the license key is incorporated in the unauthorized use prevention program stored in the HDD 13, and the unauthorized use prevention program (executable form) incorporating the license key and the application program (executable form) ) Are combined to generate a combined application (executable form) having a license key. FIG. 4 is a flowchart showing the content of the synthesizing process. here,
The content of the application program before synthesis is described in an executable form such as a binary, and is stored in the HDD 13 of the computer 10 in advance.

As shown in FIG. 4, after starting the synthesizing process, the CPU 11 recognizes the initial setting, and displays the main screen on the display (step S101).
FIG. 5 shows an example of a main screen displayed on the display. As shown in FIG.
Is a screen showing a text box 31 for the operator to input the file name of the above-mentioned user code file and a text box 32 for inputting the file name of the application program to which the unauthorized use prevention function is added. is there. The main screen 30 also includes an execution button 33 that the operator must click when synthesizing the unauthorized use prevention program and the application program, and various settings of the unauthorized use prevention function (after the execution of the synthesized application is started). A detailed setting button 34 that the operator must click when making a change (described later in detail, such as setting whether to display a dialog box for allowing the end user to input a license key) is also shown. .

After the main screen 30 is displayed, the CP
U11 waits for the execution button 33 or the detailed setting button 34 to be clicked (step S102). Thereafter, when the detailed setting button 34 is clicked (step S102; clicking the detailed setting button), the CPU 11
Displays a detailed setting screen on the display and waits for a predetermined input (step S103).

FIG. 6 shows an example of the detailed setting screen displayed on the display of the computer 10. As shown in FIG. 6, the detailed setting screen 40 is used to change a part of the processing performed by the unauthorized use prevention program portion of the synthesized application when the synthesized application is executed on the end user's computer. And a screen for changing a message displayed on the display in the processing.

An outline of the detailed setting screen 40 will be described. The detailed setting screen 40 displays whether or not to display a dialog box for inputting a license key when the synthesized application is executed on the end user's computer. And a text box 4 for setting the time of displaying this dialog box (such as “display only for the first time” or “display every time”).
4a is displayed, and a message to be displayed on the display when a dialog box is displayed, when there is an error in inputting a license key in the dialog box, or when the license key has expired. Text box 44 for input
b to 44d are shown.

Further, when the end user's computer is connected to another terminal device via the LAN, the detailed setting screen 40 shows that the computer of the end user is executing the synthesized application. A check for setting whether or not the computer checks that a synthesized application having the same license key as the license key incorporated in the unauthorized use prevention program is being executed on another terminal device on the LAN. A box 42 is shown, and a text box 45a for inputting a cycle for performing the check,
A text box 45b for inputting an error message to be displayed on the display when a combined application having the same license key is being executed on another terminal device on the LAN is shown.

Further, the detailed setting screen 40 includes a CD
-The combined application in the ROM disk (or floppy disk) is stored in the CD-ROM drive 56 (or FDD5).
5) A check box 43 for switching whether to enable activation other than the above is shown, and text for designating a location in the registry of the end user's computer where the license key is stored, and the like. Boxes 46a-46c are shown.

When the close button 47 is clicked after such a detailed setting screen 40 is displayed, the CPU 11 causes the check boxes 41 to 43 and the text boxes 44a to 44c, 45a, 45b, 46a to 46 at that time.
Recognize the setting and the message input to c, and return to the processing of step S102.

On the other hand, in the process of step S102,
When the execution button 33 is clicked (step S10
2; execution button click), the CPU 11 reads and recognizes one license key from the user code file having the file name shown in the text box 31 of the main screen 30 (step S104). And the CPU 11
Reads out the unauthorized use prevention program stored in the HDD 13, incorporates the license key recognized in the processing of step S104 into a predetermined position in the unauthorized use prevention program (step S105), Then, the settings (display / non-display of the dialog box, etc.) and the message recognized at this point are incorporated in the position, and the unauthorized use prevention program is stored in the HDD 13 with a different file name (step S106). In the process of step S106, the unauthorized use prevention program in which the license key and the settings are incorporated is stored in the HDD 13 with a different file name in order to store the original unauthorized use prevention program as a template. .

Thereafter, the CPU 11 issues a command for synthesizing and copying a file (for example, when the operating system is MS-
For DOS (registered trademark of Microsoft Corporation), "CO
PY "command) (step S107). In the command generated at this time, the portion of the parameter in which the name of the file to be copied and the like should be described is stored in the HDD 13 in the processing of step S106 to prevent unauthorized use. The file name of the program and the file name of the application program shown in the text box 31 of the main screen 30 are described in this order, whereby the synthesized application (executable form) generated after execution of this command is , Unauthorized use prevention program (executable form)
Is the content in which the content of the application program (executable form) is described at the end of the content. Therefore, in the processing by the combined application (executable form), the contents of the unauthorized use prevention program portion are executed first. In the command generated in the process of step S107, the same file name as the file name of the application program before synthesis is described in the parameter portion in which the file name to be added to the copied program is to be described. . Therefore, when the synthesized application generated after executing this command is stored in the end user's computer, unauthorized use of the application program can be prevented simply by looking at the file name of the synthesized application displayed on the display of the computer. It is not possible to distinguish whether or not the program is synthesized.

Then, the CPU 11 determines in step S107
By executing the command generated in the process (1), a combined application described in an execution format such as a binary is generated (step S108), and the combined application is stored in the HDD 13 (step S109). After that, the CPU 11
It is checked whether the next license key exists in the user code file having the file name indicated in the text box 31 on the main screen 30 (step S110). Then, when there is the next license key (step S11)
0; YES), the CPU 11 returns to the process of step S104, reads out and recognizes the license key. On the other hand, if there is no next license key (step S1)
10; NO), the CPU 11 ends the combining process.

It should be noted that in the above synthesizing process, step S
The processing loop from 104 to S110 is repeated the same number of times as the number of license keys in the user code file, and the number of synthesized applications having the license keys is generated.

The operator of the computer 10 (such as the above-described software creator and its distributor) provides the end user with a synthesized application generated by causing the computer 10 to execute such synthesis processing. Will be able to do it. In addition, as a providing method, for example, a plurality of synthesized applications stored in the HDD 13 by the above-described synthesizing process are recorded on each floppy disk, or a dedicated device connected to the computer 10 is used. There is a method of providing a plurality of floppy disks and CD-ROM disks manufactured as described above to an end user by recording each blank CD-ROM disk one by one. As another method, there is a method of connecting the computer 10 to the Internet and providing the synthesized application to the end user by making it downloadable from the computer 10. However, in any case of providing (selling) the synthesized application to the end user by any method, the provider (seller) provides the transferor (purchaser) of the synthesized application with the provided synthesized application. It is necessary to notify the license key set in.

Then, the end user inserts the CD-ROM into the CD-ROM drive or the like of the computer used by the end user.
By setting a disk or the like and reading it from the CD-ROM drive, or by downloading it from a computer on the Internet to a computer used by the user, the synthesized application can be installed on the user's computer.

As a computer used by the end user, a generally available computer having an input device such as a keyboard and a mouse, a display for displaying various screens, and a main body can be used. The internal circuit of the main body, as shown in the schematic configuration diagram of FIG.
Main components are hardware such as a CPU 51, a RAM 52, a communication control circuit 53, a hard disk drive (HDD) 54, a floppy disk drive (FDD) 55, and a CD-ROM drive 56. The communication control circuit 53 is a LAN board connected to another terminal device via a LAN cable, and controls exchange of data and parameters with another terminal device on the LAN. The other hardware has the same configuration as the computer 10 shown in FIG.

Next, the synthesized application stored in the HDD 54 of the computer 50 is transmitted to the CPU 51 of the computer 50.
The procedure of the process executed by the application, in particular, the procedure of the process by the unauthorized use prevention program portion of the synthesized application will be described with reference to the flowchart of FIG.

As shown in FIG. 8, the CPU 51 of the computer 50 reads out the combined application from the HDD 54 and starts executing the combined application, and then determines whether or not the character string of the license key is stored at a predetermined position in the registry. Is checked (step S201). When the license key character string is stored at a predetermined position in the registry (step S201; YES), the CPU 51 recognizes the license key character string. On the other hand, if the character string of the license key is not stored at a predetermined position in the registry (step S201; NO), the CPU 51
Displays a dialog box for inputting a license key on the display, waits for an OK button (not shown) to be clicked (step S202), and when the OK button (not shown) is clicked, enters the dialog box. The recognized character string is recognized as a license key.

Then, it is checked whether or not the character string recognized as the license key at this time matches the character string of the license key incorporated in the unauthorized use prevention program portion of the synthesized application (step S1). S20
3). If it does not match the character string of the license key in the synthesized application (step S203; NO), the CPU 5
1 returns to the process of step S202 and causes a dialog box to be displayed on the display. If the license key matches the character string of the license key in the combined application (step S203; YES), the CPU 51 records the license key at a predetermined position in the registry (step S204).
Then, the license key is broadcast in the LAN to notify all the terminal devices (step S205).
Note that, in the process of step S205, the CPU 5
Before the license key is broadcast, the license key is decrypted to generate a user code and the expiration date (the license key creation screen 20 in FIG. 2).
Check if the expiration date has been set, and if the expiration date has been set, check if the expiration date has been reached. A message to the effect (see the text box 44d of the detailed setting screen 40 in FIG. 6) is displayed on the display, and the process of ending this process is also performed.

Then, the CPU 51 determines in the next step S2
At 06, it is checked whether or not any terminal device has notified the same license key as its own. When the same license key is notified (step S206; YES), a screen showing a warning (see the text box 45b of the detailed setting screen 40 in FIG. 6) is displayed on the display (step S207), and this processing is performed. finish. On the other hand, when the same license key as that of its own is not notified (step S206; NO), the CPU 5
1 duplicates the synthesized application, cuts out the original application program portion of the copied synthesized application, and starts processing the cut-out application program portion (step S208). The processing by the application program portion is executed in parallel with the present processing.

Next, the CPU 51 proceeds to steps S209 to S209.
The loop processing of S211 is executed. In the first step S209 after entering the loop processing, the CPU 51 checks whether or not the processing of the application program portion started to be executed in the step S208 is continued. If the processing of the application program portion is being executed (step S209; YES), C
In step S210, the PU 51 broadcasts a license key recorded at a predetermined position in the registry to all terminal devices in the LAN.
In the process of the next step S211, the CPU 51 checks whether the license key same as the license key in the registry has been notified from any other terminal device. Then, when the same license key as the license key in the registry has not been notified from any of the terminal devices (step S211; NO), the CPU 51 returns the process to step S209.

If the same license key as the license key in the registry is notified from any other terminal device while repeating the loop processing of steps S209 to S211 (step S211; YES), the CP
U51 advances the process from step S211 to S212, and transmits the license key in the registry to the terminal device that has transmitted the license key. Then, in the processing of the next step S213, the CPU 51 displays a screen showing a warning (see the text box 45b of the detailed setting screen 40 in FIG. 6) on the display. Subsequently, in the processing of the next step S214, the CPU 51 forcibly terminates the processing of the cut-out application program part, deletes the file of the application program part, and ends this processing.

On the other hand, if the CPU 51 detects that the processing of the application program has been completed while repeating the loop processing of steps S209 to S211, the CPU 51 executes the processing in steps S209 to S21.
The process proceeds to step S5, and after deleting the file of the program that has been cut out and has only the contents of the original application program portion, the present process is terminated.

Note that the above steps S209 to S211
Is performed when the combined application is generated in the combining processing shown in FIG.
If the check mark is not input to No. 2, the check is not performed, and the check in step S208 is repeated as long as the check result in step S208 is YES.

The processing in step S202 is
If the check mark is not input to the check box 41 of the detailed setting screen 40 when the combined application is generated in the combining processing illustrated in FIG. 4, the processing is not performed. In this case, the process of recording the license key at a predetermined position in the registry is performed at the time of installation, and if the license keys do not match in the process of step S203 (step S203; NO),
The processing of ending this processing is performed by the CPU 51. By the way, even if a check mark is entered in the check box 41 when the synthesized application is generated,
When “display only for the first time” is set in the text box 44a, the synthesized application is
Only when it is run for the first time after being installed on
Step S202 is performed. However, if the license key does not match in the processing of step S203 if the execution is the second time or later (step S2).
03; NO), the process of terminating the present process is a CP
This is performed by U51.

Since such processing is performed by the end user's computer 50, the end user who intends to use the synthesized application inputs an accurate license key before the processing by the application program portion is executed. Must be entered, and even if the correct license key can be input, if another terminal device on the LAN uses a synthesized application having the same license key, the application program can be used. Disappears. Therefore, if such a combined application is provided to the end user, the combined application having the same license key as the combined application can be prevented from being executed by another terminal device on the same LAN.

As described above, a person who intends to provide a finished product application program to an end user can use the license key generation program, the synthesizing program, and the unauthorized use prevention program to obtain the application program. An unauthorized use prevention function can be easily added to an application program described in an executable format without modifying the source program.

The license key generating program, the synthesizing program, and the unauthorized use preventing program are provided on a CD-RO.
Since it can be provided to others by storing it in a storage medium such as an M disk, it is necessary to add a software creator or its distributor, and to obtain an unauthorized use prevention function to an application program but not obtain a source program. Even those who are in trouble or have no programming knowledge can easily add an unauthorized use prevention function to the application program of the executable form.

[0068]

[Modification] By the way, if the application program is C
When providing to an end user in a state of being stored in a storage medium such as a D-ROM disk, it is general that the CD-ROM disk or the like also stores an installer for installing an application program. In the embodiment, an unauthorized use prevention function can be added to this installer by using the above-described combining program or unauthorized use prevention program (hereinafter, an installer obtained by combining the unauthorized use prevention program with a combined installer ). By adding the unauthorized use prevention function to the installer in this way, it is possible to prevent the synthesized application from being used illegally by another terminal device in the LAN during the execution of the installation. It is also possible to prevent the synthesized application from being installed in the computer 50. However, the license key added to the combined installer and the combined application must be the same.

Hereinafter, the CD-R is read by the computer 50.
FIG. 9 shows the contents of the processing when the combined installer is read from the OM disk and its execution is started.
Steps S301 to S303 shown in FIG.
Correspond to steps S201 to S203 shown in FIG. 8 respectively, and the same processing is performed.

If the character string recognized at this time matches the character string of the license key in the combined installer in step S303 (step S303; YES), the CPU 51 moves the character string to a predetermined position in the registry. The license key is recorded (step S30)
4). Then, the CPU 51 sets the license key to L
Broadcast in the AN and notify all terminal devices (step S305), and check whether any other terminal device has notified the same license key as the license key recorded at a predetermined position in the registry. (Step 306).

When the same license key as the license key in the registry is notified from any other terminal device (step S306; YES), the CPU 51
Displays a warning screen on the display (step S
307), and ends this processing. On the other hand, when the license key same as the license key in the registry has not been notified from any other terminal device (step S30)
6; NO), the CPU 51 copies the combined installer, cuts out the original installer portion of the copied combined installer, and executes the process of the cut-out installer portion (step S308). The processing by the installer is executed in parallel with this processing, and the combined application is stored in the HDD from the CD-ROM disk.
Installed at 54. Although not shown in FIG. 9, during execution of the processing of the installer part, a loop processing of steps S209 to S211 shown in FIG. 8 is performed, and any license key same as the license key in the registry is used. When notified from another terminal device of the
U51 notifies the license key in the registry to the transmission source, forcibly terminates the processing of the installer part, and deletes the installer part. On the other hand, when the processing of the installer part is completed without notifying the license key same as the license key in the registry from any of the terminal devices, the CPU 51 cuts out the content of the original installer only. This process ends after deleting the program file.

Since such processing is performed by the computer 50 of the end user, the application program is transferred to the HD of the computer 50 by the synthesized installer.
If you want to install it on a storage device such as D54,
You must enter the correct license key before the processing of the installer starts, and even if you can enter the correct license key, the other terminal devices on the network will have the same license key If the application has been used, the processing of the installer part cut out there is stopped, so that the installation cannot be continued. Therefore, if such a combined installer is also stored on a CD-ROM disk or the like in which the combined application is stored, the combined application having the same license key as the combined installer can be stored in another terminal on the LAN. When the application is executed in the device, it is possible to prevent the synthesized application from being illegally installed on the computer 50 from the CD-ROM disk or the like.

(Supplementary Note 1) A program synthesizing method for generating a synthesized application program by adding the contents of an arbitrary application program described in an executable form to the end of the contents of an additional function program described in an executable form The additional function program causes the computer to perform processing for realizing a predetermined function, and then causes a part other than the self to be copied from the synthesized application program including the self, and causes the copied part to A program synthesizing method, wherein the program is a program for executing a corresponding application program and deleting the application program when the execution of the application program ends.

(Supplementary Note 2) A combined application program formed by adding the contents of an arbitrary application program described in the executable form to the end of the contents of the additional function program described in the executable form is converted into a computer. The additional function program causes the computer to perform processing for realizing a predetermined function, and then causes a part other than the self to be copied from the synthesized application program including the self. A program synthesizing program for executing an application program corresponding to a copied portion and deleting the application program when the execution of the application program is completed.

(Supplementary Note 3) This is an additional function program in which the contents of an arbitrary application program described in an executable form are added to the end, and after making a computer perform processing for realizing a predetermined function, An additional function program that causes the application program added to the application program to be duplicated, executes the duplicated application program, and deletes the duplicated application program when the execution of the application program ends.

(Supplementary Note 4) A combined application program formed by adding the content of an arbitrary application program described in the executable format to the end of the content of the additional function program described in the executable format is added to the computer. After causing the computer to perform processing for realizing a predetermined function and causing the computer to perform processing for realizing a predetermined function, a part other than the self is duplicated from the synthesized application program including the self, and corresponds to the duplicated part. A computer-readable medium having recorded thereon an additional function program for executing an application program and deleting the application program when the execution of the application program is completed.

(Supplementary Note 5) The contents of an arbitrary application program described in the execution format are added to the end of the contents of the additional function program described in the execution format to cause the computer to perform a process for realizing the predetermined function. A combined application program configured by adding together, and after causing a computer to perform a process for realizing the predetermined function, causes a computer to copy a portion other than the additional function program describing the content of the process. A combined application program for executing the application program corresponding to the copied portion, and deleting the copied application program when the execution of the application program is completed.

(Supplementary Note 6) At the end of the contents of the additional function program described in the executable form, the contents of the arbitrary application program described in the executable form are added to the end of the contents of the additional function program to cause the computer to perform the processing for realizing the predetermined function. A computer-readable medium storing a combined application program configured by adding, wherein the combined application program causes a computer to perform a process of realizing the predetermined function, and then performs a process. And duplicating a part other than the additional function program, executing the application program corresponding to the duplicated part, and deleting the duplicated application program when the execution of the application program ends. Synthesized, characterized by A computer-readable medium storing an application program.

(Supplementary Note 7) A combined application program formed by adding the contents of an arbitrary application program described in the executable format to the end of the contents of the unauthorized use prevention program described in the executable format is defined as: A method for adding an unauthorized use prevention function, wherein a plurality of generated application programs are added and identification information for enabling each synthesized application program to be identified mutually is added to an unauthorized use prevention program portion of each synthesized application program. The unauthorized use prevention program causes a computer connected to another terminal device via the LAN to periodically transmit identification information added to itself to all terminal devices on the LAN, When identification information is transmitted from any terminal device on the LAN, Only when the identification information does not match, the part other than the self is copied from the combined application program including the self, and the application program corresponding to the copied part is copied. A program that, when the execution of the application program is completed, deletes the duplicated application program, and forcibly terminates processing by the duplicated application program when the identification information matches each other. A method for adding a feature to prevent unauthorized use.

(Supplementary Note 8) A synthesized application program formed by adding the contents of an arbitrary application program described in the executable format to the end of the contents of the unauthorized use prevention program described in the executable format is defined as A method for adding an unauthorized use prevention function, wherein a plurality of generated application programs are added and identification information for enabling each synthesized application program to be identified mutually is added to an unauthorized use prevention program portion of each synthesized application program. The unauthorized use prevention program causes the computer to compare the identification information with the identification information added to the computer when the identification information is input, and only when the identification information matches each other, Of the application program other than itself from the A method for executing an application program corresponding to a duplicated portion of the program, and deleting the duplicated application program when the execution of the application program is completed.

(Supplementary Note 9) The computer is configured to add the contents of an arbitrary application program described in the executable form to the end of the contents of the unauthorized use prevention program described in the executable form. Addition of an unauthorized use prevention function that generates multiple application programs and adds identification information that enables each synthesized application program to be distinguished from each other to the unauthorized use prevention program portion of each synthesized application program. The unauthorized use prevention program periodically transmits, to a computer connected to another terminal device via a LAN, identification information added to itself to all terminal devices on the LAN. To send the identification information from any terminal device on the LAN. When the information is transmitted, it is compared with the identification information added to the self, and only when the identification information does not match, the part other than the self from the synthesized application program including the self is copied. The application program corresponding to the copied portion is executed, and when the execution of the application program is completed, the copied application program is deleted. When the identification information matches each other, the application program corresponding to the copied application program is deleted. An additional program for preventing unauthorized use, which is a program for forcibly terminating processing.

(Supplementary Note 10) The computer is configured to add the contents of an arbitrary application program described in the executable form to the end of the contents of the unauthorized use prevention program described in the executable form. Addition of an unauthorized use prevention function that generates multiple application programs and adds identification information that enables each synthesized application program to be distinguished from each other to the unauthorized use prevention program portion of each synthesized application program. The program, wherein the unauthorized use prevention program causes the computer to compare with the identification information added to itself when the identification information is input, and only when the identification information matches, In the synthesized application program including self A program that causes a part other than itself to be duplicated, executes an application program corresponding to the duplicated part, and deletes the application program when the execution of the application program ends. Prevention function addition program.

(Supplementary Note 11) This is an unauthorized use prevention program in which the contents of an arbitrary application program described in an executable form are added to the end and identification information for identifying the application program from other programs is added at a predetermined position. Then, a computer connected to another terminal device via the LAN is caused to periodically transmit the identification information added to itself to all terminal devices on the LAN, and any one of the terminals on the LAN is transmitted. When the identification information is transmitted from the terminal device of the terminal device, the identification information is compared with the identification information added to the terminal device, and only when the identification information does not match, the application program added to the terminal device is duplicated. To execute the copied application program, and when the execution of the application program ends, the duplicated application program is executed. An unauthorized use prevention program for deleting an application program, and forcibly terminating processing by the copied application program when the identification information matches each other.

(Supplementary Note 12) An unauthorized use prevention program in which the contents of an arbitrary application program described in an executable form are added to the end and identification information for identifying the application program from other programs is added at a predetermined position. Then, when the computer inputs the identification information, the computer compares the identification information with the identification information added to the computer. Only when the identification information matches each other, the application program added to the computer is compared. An unauthorized use prevention program which causes a copy, executes the copied application program, and deletes the copied application program when the execution of the application program is completed.

(Supplementary Note 13) The computer is configured to add the contents of any application program described in the executable form to the end of the contents of the unauthorized use prevention program described in the executable form. Addition of an unauthorized use prevention function that generates multiple application programs and adds identification information that enables each synthesized application program to be distinguished from each other to the unauthorized use prevention program portion of each synthesized application program. The identification information added to the program and the computer connected to another terminal device through the LAN are
Periodically transmit to all terminal devices on the AN,
When the identification information is transmitted from any terminal device on the AN, the identification information is compared with the identification information added to the terminal itself. Only when the identification information does not match, the synthesized application program including the terminal includes the identification information. From the other, the application program corresponding to the duplicated part is executed, and when the execution of the application program is completed, the duplicated application program is deleted. A computer-readable medium storing the illegal use prevention program for forcibly terminating processing by the duplicated application program when they match.

(Supplementary Note 14) The computer is configured to add the contents of any application program described in the executable form to the end of the contents of the unauthorized use prevention program described in the executable form. Addition of an unauthorized use prevention function that generates multiple application programs and adds identification information that enables each synthesized application program to be distinguished from each other to the unauthorized use prevention program portion of each synthesized application program. When the identification information is input to the program and the computer, the program compares the identification information with the identification information added to the program. From the part other than the self. A computer-readable medium storing the unauthorized use prevention program for executing an application program corresponding to a manufactured part and deleting the duplicated application program when the execution of the application program is completed. .

[0087]

As described above, according to the program synthesizing method of the present invention, the processing is executed before the processing by an arbitrary application program described in an executable form without modification using a source program. Powerful new functions can be easily added to the application.

Further, if the application program is combined with an unauthorized use prevention program for realizing a function for preventing the application program from being used illegally, the unauthorized use prevention function can be easily added to the application program. .

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram of an internal circuit of a computer to which a program synthesizing method according to the present invention is applied;

FIG. 2 is an exemplary view showing an example of a license key creation screen displayed on the display of the computer of FIG. 1;

FIG. 3 is an exemplary view showing an example of a data configuration of a user code file stored in an HDD of the computer of FIG. 1;

FIG. 4 is a flowchart showing processing contents of a synthesis program executed in the computer of FIG. 1;

FIG. 5 is an exemplary view showing an example of a main screen displayed on a display of the computer of FIG. 1;

FIG. 6 is an exemplary view showing an example of a detailed setting screen displayed on the display of the computer of FIG. 1;

FIG. 7 is a schematic configuration diagram of an internal circuit of a general computer on which a synthesized application is installed.

8 is a flowchart showing processing contents of a synthesized application program executed in the computer of FIG. 6;

9 is a flowchart showing processing contents of a combined installer executed by the computer of FIG. 6;

[Explanation of symbols]

 10 Computer 11 CPU 12 RAM 13 Hard Disk Drive (HDD) 14 Floppy Disk Drive (FDD) 15 CD-ROM Drive 16 Floppy Disk 17 CD-ROM Disk 50 Computer 51 CPU 52 RAM 53 Communication Control Circuit 53 Hard Disk Drive (HDD) 54 Floppy Disk drive (FDD) 55 CD-ROM drive

Claims (5)

[Claims] 1. The method according to claim 1, further comprising: adding the contents of an arbitrary application program described in the executable form to the end of the contents of the additional function program described in the executable form.
A program synthesizing method for generating a synthesized application program, wherein the additional function program causes a computer to perform processing for realizing a predetermined function, and after the processing, causes the computer to execute a synthesized application program including itself. A program that causes a part other than itself to be duplicated from among them, executes an application program corresponding to the duplicated part, and deletes the application program when the execution of the application program ends. Program synthesis method. 2. A combined application program formed by adding the contents of an arbitrary application program described in an executable form to the end of the contents of an additional function program described in an executable form.
A program synthesizing program to be generated by a computer, wherein the additional function program causes the computer to perform processing for realizing a predetermined function, and after the processing, causes the computer to perform processing from among synthesized application programs including its own. A program synthesizing program, which is a program for causing a part other than itself to be duplicated, executing an application program corresponding to the duplicated part, and deleting the application program when the execution of the application program ends. . 3. A plurality of synthesized application programs generated by adding the contents of an arbitrary application program described in an executable form to the end of the contents of an unauthorized use prevention program described in an executable form. And identification information for enabling each synthesized application program to be distinguished from each other.
A method for adding an unauthorized use prevention function to be added to a portion of an unauthorized use prevention program of each synthesized application program, wherein the unauthorized use prevention program is transmitted to a computer connected to another terminal device via a LAN. On the other hand, the identification information added to the terminal is periodically transmitted to all the terminal devices on the LAN, and when the identification information is transmitted from any terminal device on the LAN, the identification information is added to the terminal. Comparison with the identification information, and only when the identification information does not match each other, a portion other than the self is copied from the combined application program including the self, and an application program corresponding to the copied portion is executed,
When the execution of the application program is completed, the copied application program is deleted, and when the pieces of identification information match each other, the processing by the copied application program is forcibly terminated. How to add unauthorized use prevention function. 4. A combined application program constituted by adding to a computer the contents of an arbitrary application program described in an executable form to the end of the contents of an unauthorized use prevention program described in an executable form. Is generated by a plurality of unauthorized application prevention programs, and identification information for enabling each synthesized application program to be identified mutually is added to an unauthorized use prevention program portion of each synthesized application program. The unauthorized use prevention program periodically transmits identification information added to itself to a computer connected to another terminal device via the LAN to all terminal devices on the LAN. ID information is transmitted from any terminal device on the LAN. In the event that the identification information is added, it is compared with the identification information added to the self, and only when the identification information does not match, the part other than the self is copied from the synthesized application program including the self, and the copied Execute the application program corresponding to the part,
When the execution of the application program is completed, the copied application program is deleted, and when the pieces of identification information match each other, the processing by the copied application program is forcibly terminated. Additional program to prevent unauthorized use. 5. An unauthorized use prevention program in which the contents of an arbitrary application program described in an executable form are added to the end and identification information for identifying the application program from other programs is added at a predetermined position. A computer connected to another terminal device via the LAN, periodically transmitting the identification information added thereto to all the terminal devices on the LAN; When the identification information is transmitted from the device, it is compared with the identification information added to itself, and only when the identification information does not match, the application program added to itself is copied, and the copied application program is copied. The application program is executed, and when the execution of the application program is completed, the copied application is executed. An unauthorized use prevention program for deleting an application program and forcibly terminating processing by the duplicated application program when the identification information matches each other.