How can msvcrt possibly be native in a without windows setup? Anyway, if you want winver as win98, we might as well have winelook at win98 too.
Which can lead to the question, what's the purpose of it if wineinstall can do it?
wineinstall is a command line tool for installing wine from source code. Most people would say it's a "For geeks only" thing. You can start winesetuptk without knowing what a shell is, and you can set it up with a few clicks of the mouse, it's usually used by people using binary packages, you know, those people that only use computers as tools and don't know/care about source code and tweaking configurations, and that could never use wineinstall.