Only get your patches from trusted sources and groups, like CORE which have facilities to verify you actually have there release unmodified. Believe me theres no way groups like CORE, or any other major scene group would do anything but crack the registration of an app or they would be banned very quickly.

Drivecrypt Plus Pack was $125USD, I suppose if I was rich I buy it, but Im satisfied with dT's keygen of it :P