How/where can I get a SIMPLE password generation/protection application?

I have a very old ZD Net Password Pro 32, Version 3.1.4. It suits my needs perfectly, but I now have a new computer and don’t know how to transfer Password Pro from the old computer.

I asked ZD Net if it won’t transfer, what’s the closest thing that they have? I looked at many of the password protection downloads on their list, but they all seem way more complicated than I need.

ZD Net didn’t answer, but instead suggested that I post the question on this forum