I'm sure you knew that WinISO was coded in Borland C++ (1999), and PowerISO in MSVC++ then, Yes? It may well be made by the same guy, but if he's ported it from BC++ to MSVC++ I'd say he's not being unfair renaming/selling it again, I certainly would, its practically a re-write (Different GUI Engine, Libraries, etc). EDIT: In my opinion they don't even look like they're done by the same person...