Registering scripts to a domain?

[Demonic]

I was thinking about when someone buys something from me, where they would purchase and they would have to register their domain with the system, then the installation system would connect to my server using sockets or something of the sort and doing checks then having to see if their domain is registerd within my client database.  Anyone feel this could work?  All the sql and stuff would be on my server, and grabbed and executed so it installs successfully.  This could stop a number of leaks, but then this could get patched really fast. 

 

What do you feel about the subject of registering software using domains and installation keys?  Then I was thinking about "java" if there could be a "secure" way of going about it.

[dbo]

I would probably suggest you just granting them access to a webservice that you build. Doing it this way you could build a single script and sell it to multiple people. You'd then just grant them access via a username/password. They'd initialize the object with the username and password... if they are valid they can then access the other methods, if not.... well they can't.