how to create trial version from my app ?
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hi i want to create trial version from my app and after it was Expired, end user can't restore windows and use it again. How to do ? thanks ..
You can add an entry in the registry which consists of the date of installation and the expiry date. You can check this value when the app starts if the date has reached just delete the registry entry and the app should not be executed if the registry entry is not present. Hope that works for u.
Thanks & Regards, Pramod "Everyone is a genius at least once a year"
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You can add an entry in the registry which consists of the date of installation and the expiry date. You can check this value when the app starts if the date has reached just delete the registry entry and the app should not be executed if the registry entry is not present. Hope that works for u.
Thanks & Regards, Pramod "Everyone is a genius at least once a year"
The registry entry will have to be created every time you install the application, so after expiration you'll just have to reinstall to get another trial period. It'll also be saved if you create an image of your windows after installation. And there are tools out there that can easily track all modifications done to the registry so you can see which registry key is being created. I'm afraid there is no really watertight way to achieve this when only a single computer is concerned (i.e. without some sort of online activation).
Regards, mav -- Black holes are the places where God divided by 0...
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hi i want to create trial version from my app and after it was Expired, end user can't restore windows and use it again. How to do ? thanks ..
If you dont mind using a commercial tool, take a look at CryptoLicensing It can limit licenses to N number of days.