how to make the trial version(with encrypted password) of the software that i am having? and it will be automatically uninstall after 15 days.

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can any one tell me, i mean help me how to make the trial version(with encrypted password) of the software that i am having? and it will be automatically uninstall after 15 days.

i have made the project in vb.net.

Thanks in advance for your co-operation...
samsul
[EDIT]Mail removed - losmac[/EDIT]

Posted 13-Aug-11 12:38pm

sammsul

Updated 13-Aug-11 12:44pm

Maciej Los

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Maciej Los · Answer 1 · 2011-08-14T22:29:00

Solution 1

It's impossible ;)

You can create installer with password and time limitation, but you can't automaticly uninstall your software, because:
1) no one likes spy-software (you need to install software, which should start with windows OS and waiting in memory),
2) user can use your software in different period of time, not daily.

Search database of "Articles" to find how to build installer with password option.

Posted 14-Aug-11 22:29pm

Maciej Los

Comments

sammsul 19-Aug-11 8:16am

First of all, thanks for your reply.... and l would like to inform you that itz possible...also that already i solved my problem...

Maciej Los 19-Aug-11 16:10pm

I'm happy with you. Please, mark your question, change it status as solved.

**Dalek Dave** · Answer 2 · 2011-08-14T22:49:00

Uninstall, as Iosmac says, is not possible, but you can render the trial version unusable.
Either through a calendar function, or by a web method.

On start-up of the application it would need to check a file to see a certain password.
If, after 15 days, the password is not there, then it stops the app.

Alternatively, on start-up it checks back to base, ie your database of authorised versions, and will be given a 'Go Ahead' call.

This is useful for doing annual fees to use too.