Has anyone done any work in keeping product license keys and product registration?

Before I start work on this my self, I was wondering if anybody has done work in this direction, or if I'm going down the right direction.

Basically I want to be able to populate a set of product keys related to a product (so new table/entity).  When customer purchases that product, he can download the product and either have it display the product key and/or email it to them.  The same product can be sold outside of the online system (nopCommerce) so in that case, the product key comes in the box.  The product has a registration mechanism (will use web service) to either confirm the online install has been done, or the offline purchase has been installed (and connected to a newly created customer entry if not all ready in database).

I also need to be able to register the customer (if product bought by box not via online nopCommerce) from the product which I can do either using web service (but then have to do a captch via web service) or host an browser window on app (which has registration stuff using apps color motif).  I will of course need a series of pages to manage this.  I'm thinking that this could be done in 3 plugins? 1 for web service (because it's a web service), 2 for admin (because it's admin world), 3 for simple user registration (because it's done in users world).

In the end, it will be a bit more complicated than that because the registration will tie in an install with a pc etc so have to let customer unregister license so that it can be re-installed on another pc etc.

Any feedback on this?

Thanks,
Bernie

Take a look at this "http://www.softlock.net/"

I use to use them a few years ago

Thans for your response.  I all ready have the protection software protection scheme, but I want to integrate with nopCommerce and be able to integrate into the customer record.  I'm trying to find the best way to add a table (e.g. a product key table to keep product keys, a registration table, all tied back to the customer).  I'm looking for documentation on what the best way to do this.

Bernie

You can find info on extending nop, e.g.
https://www.nopcommerce.com/boards/t/11315/how-to-extending-nopcommerce-v20.aspx

but there is no doc regarding your specific needs.

I do wonder though, whether you could simplify things by using existing Downloadable Products support - e.g. OrderProductVariant has a LicenseDownloadId field referencing Downloads table, so you could track a customer's licenses via his orders, etc.