Incentivize a Downloadable?

Here is what I am thinking, maybe it is totally wrong, if so I am sure someone will let me know to Knock it off.

I have created a shareware program that is unlockable to a "buy" the full version they click a link in the program and it takes them to My website. On my site I will link them to a CPA campaign (maybe an email/zip submit) to get a conversion. I want to be able to track that specific user and know when they have completed the action, so that I can email or display (automatically of course) the unlock code. I think that it is possible to do this using the postback URL function neverblueads. But I can't really see how to use it for tracking individuals.

Any suggestion to do this type of thing would be cool.

-CT

I'm not a member of Neverblueads but I can tell you to talk to your aff manager about using your sub ids (if available).

Neverblue does have Subid, but I was under the impression they were more for tracking fixed Groups of ads going to the CPA campaign. I think it would be hard to assign a Subid to an individual on the fly (when they decided to unlock) and then post that back to the website, but I will talk to my Aff Mgr about it. She wasn't too tech savy last time we spoke, but may be she can hook me up with someone there who is. I think SubId's would be good for tracking several shareware programs that were unlocking from the same CPA campaign, though and I will probably implement that as well.

-CT

Seems this post is similar to one that Almir posted earlier today.

http://www.blackhatworld.com/blackhat-seo/making-money/23694-how-earn-money-giving-away-software.html

I was hoping for a bit more sophisticated solution than the one that was brought up there though. (grab a word from the CPA thank you page and use it as the unlock code)

it looks its difficult to make it more sophisticated