How to make a database expire

[jacc14]

Hi

I would like to pass on a demo of my own database (MDE) for a customer. However I want to protect it so that after a few days it will expire so they cant use it again without actually buying it.

On the version I have , I have wrote in the code that after a certain date a message will appear to say it has expired and then it will automatically close. This is open to abuse however as if they are clever enough, if they amend the computer date then its still usable.

Does anyone have any other clever ideas for this that doesnt rely on the date?.

thanks
Jacc14

[dsatino]

First, turn of the 'shift' bypass, the menu bars, and the hot key combinations that allow access to the code modules.

Once you've done this, there's really no way to avoid any AutoExec macros that you have the database set to run and no way to access the backend code. (be sure to leave yourself a way in)

From here you can be as creative as you'd like. But if you want to avoid dates all together, you'd probably want to do something along the lines of a usage count where every time the DB is opened the count is modified.

[jacc14]

Thanks for this. Great idea. I will look tonight
Cheers
Chris