@BOB – Thanks for sharing your opinion! And thanks for your suggestion, it’s what I tried earlier. I, like you, am using a Windows 10 64 Bit PC. But even on my third attempt, I couldn’t get “Premium Version” in “help”, and couldn’t find anywhere to enter the registration number. On the other hand, it seems as if it’s been preregistered. Under “add or remove buttons”, “premium version” is checked, and, unlike Oray Tuglen, I don’t see any time limit on the program (although maybe I don’t know where to look). So I’ll give it a try as is, and see what develops. Thanks, again, BOB.