Kagi was indeed working on such a module when we held RevCon West a couple of months ago. As far as I can tell, they have not yet announced that product.

Disabling some features of the product until some condition is met is straightforward provided, of course, you've modularized your code sufficiently.

I don't suspect this kind of thing would be hard to roll your own. The "hard" part is coming up with an unlock code/mechanism that can't be trivially cracked.

On Aug 22, 2005, at 10:22 AM, Malte Brill wrote:

Hi Levi,

>At this point I'm looking for any system to do this, perhaps it could be web integrated

I vaguely recall that there should have been a Kagi Module for Revolution. I could also be wrong. :-) Kee might be able to tell you more about it. Maybe this thread is interesting:

http://lists.runrev.com/pipermail/use-revolution/2004-December/ 048308.html

>be able to unlock with a serial code while offline,
>anything of the sort.

This could easiely be scripted. I have a demo stack available here. Scripts are commented.

http://www.derbrill.de/revstack/passwort.rev.zip

Once the user has unlocked your program you can write it into an external file (which your app checks for at startup) If the file is present and the data is correct you allow access to all features, otherwise you only allow access to the features you want the user to use.

A general tip:

Password protect your stack before you distribute it.

Hope that helps,

Malte


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