How to Retrieve Install Serial Number
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From: Gregory A. Beamer on 11 Jan 2010 12:41 "John Whitworth" <sexyjw(a)g_EEEEEEEEEEEEEEEE_mail.com> wrote in news:4b47acd3$0$2475$db0fefd9(a)news.zen.co.uk: > I want them to enter a number during installation, which I can then > pick up in my application. I've added the Customer Information screen, > and I can enforce the entry of the serial number - but that just > performs a MOD-7 to ensure that it's valid. I want, ideally, to be > able to grab the number from within my application, and do a little > more validation upon it before running the app. > > It's basically very much like the serial number entry in Visual Studio > 6 was - i.e. no key validation etc - just a simple check. It is easy enough to create an algorithm that checks each series and then makes sure the series work as a whole. That is essentially what Microsoft does. NOTE that no matter what you do a serious hacker/cracker will break it, even if they have to alter the call to check the number. It is not worth the time trying to get the perfect system unless you are planning on selling the system, rather than the software. Getting a serial number to a user can be done via sign up when they download the software. And you can set the software up with a temporary key that works for X time if they want a trial. You then only allow "update key" functionality until they put a real key in. Forcing a user to put in a serial number is easy enough. Install and then have a check. In many cases, the number is stored in the registry thereafter so the user does not need to enter again. You can also put this in a file, but the file can be deleted. Peace and Grace, -- Gregory A. Beamer (MVP) Twitter: @gbworld Blog: http://gregorybeamer.spaces.live.com ******************************************* | Think outside the box! | *******************************************
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