Before I came to work for iNET Interactive, I previously owned a script development company. We combatted piracy daily with several different russian based companies who were selling illegal copies of our script. Not only were they selling the script, they were telling people who came to them for support "oh, we didn't write the script email <address removed> for support and tell them we sent you and they will help you". So not only did we have them selling pirated copies of the script, we had pissed off people who had spent $2-3k for something we sold for $300 who couldn't understand why they were overcharged and how come we wouldn't support them. We attempted basically every possible avenue, from sending DMCA's to their ISP's, contacting virtually every law enforcement branch who would answer the phone (or we could find a mailing address for) and it never stopped. We finally partially resolved the issue by releasing a totally new version which was partially encrypted and including a licensing system which locked the install to the specific website URL and IP address. Even then we still had the angry people who thought we should help them, but after sending a form letter explaining the situation along with supporting legal documentation they usally stopped hounding us and in turn started trying to get their money back from the fraudsters. The real point I am trying to make is that unless your lucky and scare tactics work, there is really nothing you can do to touch them without costing tens of thousands of dollars and even then having no guarantees. But of course IANAL, so I am only giving my experience and not actual legal advice.