I think you're missing the point of the article. The article is a demonstration of a less known feature in windows95 that let you run windows 3.1, but offered a

I think you're missing the point of the article. The article is a demonstration of a less known feature in windows95 that let you run windows 3.1, but offered a button to "switch to windows95" at runtime (i.e. switch to something newer, not to something older).