Setting my Application to Expire After a Certain Number of Executions

[Desmond]

Setting my Application to Expire After a Certain Number of Executions

Document ID: IR10062

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The information in this article applies to:

• AutoPlay Media Studio 5.0 Standard Edition
• AutoPlay Media Studio 5.0 Professional Edition

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SUMMARY

This article describes how to set your application to expire after a certain amount of executions.

DISCUSSION

To make your application expire after a certain number of executions, store a value in the registry the first time the program is run, and increment it every consecutive time the program is run. Then, every time the program is run, check the stored value.

To accomplish this, insert the following code into the On Startup event of your project:

times_allowed = 30;


times_run = Application.LoadValue("My Application", "Has Been Run");


times_run = String.ToNumber(times_run);


times_remaining = (times_allowed - times_run)





if times_run == "" then


     Application.SaveValue("My Application", "Has Been Run", "1");


else


     Application.SaveValue("My Application", "Has Been Run", (times_run + 1));


end





if times_run >times_allowed then


     Dialog.Message("Trial Period Over", "This software has expired");


     Application.Exit();


else


     Dialog.Message("Trial Period", "You can run this program "..times_remaining.." more times.");


end  

MORE INFORMATION

For more information please see the following topics in the AutoPlay Media Studio 5.0 help file:

• Program Reference | Actions | Application | Application.LoadValue
• Program Reference | Actions | Application | Application.SaveValue
• Program Reference | Actions | System | System.GetDate

KEYWORDS: AutoPlay Media Studio 5.0, Expire, Trial, Version, Executions

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Last reviewed: October 1, 2003
Copyright © 2003 Indigo Rose Corporation. All rights reserved.