1Way is the best we have found to make our software secure, to be able to provide registration codes that expire and that are also date sensitive. We sell our software all around the world and offer rentals on most of our products. Without 1Way we had to do a lot of coding which is now not necessary. 1Way is easy to use and has a lot of functionality. Id recommend it to other developers, personally I think there is no better way to do it.

Website: http://atma-software.com/1way/