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    <p>Ah, the age old issue of DRM. And that's what you're talking about here. Frankly, the fundamental answer to your question is: you can't. No matter what you do to the system, it can be hacked and modded in such a way that your DRM authentication scheme can be bypassed and/or broken. </p> <p>This is a fundamental fact of software development: it can and will be pirated.</p> <p>So, the answer to your question is that you will have to trust the client to pay you the fees you determine to be correct (which is the whole point of contracts in this situation).</p> <p>Any other actions you take are a hardship and annoyance on your paying customer, and has the potential to erode your customer base.</p> <p>Now, if you want control of your software in the nature described, then do not provide it to users to run on their own servers. Force them to be SaaS. In that way, you control all of that. But this is the only way. </p> <p>Something that you don't appear to be thinking about, but I have seen networks which do not allow any type of "dial home" solutions, as a majority of the systems were internally focused and thus these internal servers were NOT allowed to contact the outer internet. At all. It was deemed a security risk to even allow them access. How would you handle those networks? </p> <p>Frankly, if I was the customer, and I paid my fees to license your software (which I installed on my own device) I would be irate if I had to allow that device access to the internet in order for it to work. Doubly so, if the software in question was any type of financial management, customer management, HR management, quality management, inventory management, sales, or just anything related to my business, customers or employees. I don't trust software developers enough to have their software talk to something else when my business-relevant data is held in their software.</p> <p>In the end, what you are describing is an antagonistic approach to take with your <em>paying</em> customers. If you don't believe me, look at the comments that UbiSoft is getting for their latest customer-hating DRM scheme.</p> <p>IMO, you have two good paths here:</p> <ol> <li>Go SaaS </li> <li>Ensure your contract has a bite for non-payment</li> </ol>
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    1. POASP.NET - What is the best way to block the application usage?
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    1. USStephen Wrighton
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    1. COAnd for #2., make sure you can enforce the contract when (not if) it is necessary.
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      1. USFrustratedWithFormsDesigner
    2. COOur software can be pirated, but won't. Thats because we deliver only extremely customized softwares, totally focused on the client issue, nad probably no one in the world has exactly the same variables as this client, so no one will find a way to use the software to solve any problem. And its because of it beeing so customized that we must control the access, we need to take the highest profit from the same client as the time goes on, if the client find a way to use it without paying, then the software can be throw at the trash bin, we won't sell it to any other client cuz no one will want it
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    3. CO@frustrated - hence the "bite" statement. @Tufo - And? your statement changes nothing. Truth is, that most of the software I build is extremely customized for my clients. Which is why I charge hourly for the creation of the software, and then forget about it, until I charge hourly again when they want changes.
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