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    <p>For online software, you can request the email address and first and last name from the buyer. You can apply an algorithm on those values to turn them into a large number. You prompt the user to enter the number, and if the calculated number matches what was entered by the user, you store the number and enable the software.</p> <p>I use Plimus, which is a service that delivers my software and bills the customers for me. I store the key generator on their server, which generates the serial number based on the information from the customer's online order.</p> <p>For shrink wrapped (off-the-shelf) software, you could still do this, but you'll need some type of online activation mode that basically forces the user to register when they first run it. This allows you to collect the email address and name and send them their serial number. Users typically don't like this. What if your server is down? However, they'll be willing to do it if your software is good enough and you provide decent support to help them with problems registering.</p> <p>For off the shelf software, typically, some algorithm is used to generate a series of large numbers, each of which matches some algorithm and enables the software. One serial number is packaged with each copy of the software.</p> <p>In my opinion, the most difficult issue is providing the user the ability to try the software out. You could offer refunds, but you'll need a way to revoke the software. You could have a trial version, but trial software is even harder because you don't want to let them keep using the trial version. It's simpler to create a free (forever) limited version, and the pay version has additional features.</p>
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    1. POhow to Commercially Licence Java Software?
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    1. USMarcus Adams
    1. USMarcus Adams
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    1. COthis is also a very good suggestion.let me think on both the issues and then will decide by the way thanks tonn for your advice and valuable time
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      1. USAryan
 

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Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

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