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09.22.2000 at 03:23PM PDT, ID: 11353958
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7.0

Different solutions for making expiring/crippled software

Asked by MDesigner in Visual Basic Programming

Hi,

I'd like to discuss different solutions for making my VB application expire after X days.  Or maybe not expire, but be crippleware unless registered.  I will award the points to the solution I like the most.

I'd like to make it so when my application is first run, it prompts for a registration key/code.  If the user enters nothing, demo mode is entered, and the program will either expire in X days, or be crippled in some manner.  If a proper registration key is entered, the program is fully functional.

What is the most effective (and SECURE) way to do this?  The malicious user shouldn't be able to change the system clock or easily edit the registry or any of that.

And how will the registration keys work?  How will some fail and some work, and how do I determine that?

I'd rather not pay for these kinds of components that accomplish what I'm talking about.  I might pay under $40, but that's about it.

Thanks!Start Free Trial
 
Keywords: Different solutions for making expiring…
Title
1 Crippling Shareware
2 Is payroll fully crippled in later versions?
3 crippled images
4 Crippled Vista
5 Clock
6 hard drive factory crippled
 
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[+][-]09.22.2000 at 03:36PM PDT, ID: 4411026

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[+][-]09.22.2000 at 04:34PM PDT, ID: 4411373

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[+][-]09.22.2000 at 04:51PM PDT, ID: 4411461

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[+][-]09.22.2000 at 05:21PM PDT, ID: 4411545

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[+][-]09.22.2000 at 05:28PM PDT, ID: 4411575

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About this solution

Zone: Visual Basic Programming
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Solution Provided By: BobLafleur
Participating Experts: 4
Solution Grade: B
 
 
[+][-]09.22.2000 at 05:36PM PDT, ID: 4411614

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[+][-]09.22.2000 at 05:47PM PDT, ID: 4411656

Often, when Experts are collaborating with members who have asked questions, they will request additional information about the problem. Askers respond with an author comment like this one.

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[+][-]09.24.2000 at 07:13AM PDT, ID: 4421339

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