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How do I create a trial version of 3 month for my application ?
I want to do it like Norton. If I uninstall the application and reinstall it, I don't want it to reset the trial.
How is it working ? Is it a hidden key in the registry or a DLL in system32 ?
The only thing I know is that I should not name it with a significative name.
never done it myself but would presume you would stick an entry in the registry with the date and check this on start up of your app and install?
Is this a database application?
Yes, but on install, the database will be replaced with a new one
Quote:
Originally Posted by Gensor
What type of database will you be using (ie. Access, etc)?
A different approach would be to code the app so that it has only limited functionality until the user registers it. If you like that approach then take a look at the A program registration scheme link in my signature.
My database is an MS access database.
And Martin, I want to let users have full functionnalities for a limited period of time.
Then you will probably want to encript the date somehow and store it in either in the database or in a file somewhere on the hard drive and then compare it to the current date. In order to prevent the user from changing the system date/time maybe you can check someother date/time sorce (ie. Internet).