while vb4 matured quite well over time, vb5 is just a mess. slow, buggy, not very feature-rich. and that has not changed even after all those years that it has been on the market now. i once tested it, never touched it again.
I don't care about the name/number an OS has, as long as it works fine. I had no problem with Win7, and I have no problem with Win10 either. So I like it (although I never needed it over Win7 ?).