>Just wondering if anyone (besides us) uses activation codes and what your thoughts on them are?
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>Our purpose for using an activation code is that it allows us to distribute a full-function demo version of our application that will stop working in 30 days. If they decide to purchase it, we can provide an activation code that will convert the demo into an unlimited version.
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>What is everyone else doing for commercial applications?

Hi John. We use an activation code for the application itself and for the various modules contained within it. The user can even re-distribute the demo CD if they like. 30 day trial and the code is required. We wrote it ourselves. Very simple.