Thanks Mack. I am C&P'ing. The program always acknowledges it is correct and says it is registered, and will close down and start the registered version, but then comes back up and asks again. I tried removing it and re-installing 18.104.22.168 beta and now that has the same result.
I have asked Fengtao to try and provide me a key that I can double-click on to import into the registry. It seems the program, for some reason, cannot write it's regfile to the registry. This is not a problem with the software at this point, but with my OS.