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Can you describe more clearly what you mean by 'one installation' - one per copy of a CD? one per user? one per Computer?
There's lots of methods of doing stuff like this. A common way is to generate a key or serial number for each purchase or copy of your app, and then verify that it is valid when installed. You could have your app check the key with a server-side script on your website. The script would verify the key is valid, and use a database to record when each key is registered, to prevent duplicate registrations. The app would check the response of the script, before going ahead with installing/running.
hope this helps,
Thanks...I think this is very good method too, but I'm looking for a method standalone that register a copy on a PC and block any other installation on other PC.
Do u know any standalone method?
Thanks for your help
I don't think this is possible. How can a standalone PC know whether the software is already registered on another PC?
sorry, no other ideas!
The only way you can make sure the user can only use one copy of your software is to distribute a dongle with the software. The user plugs this into their PC which give a unique code when requested by the software.
The Minds Eye