I'm kind of bummed out that there's no way to disable the switchbar through script Please include it next version.

i'm not sure if i understand u, but if u meant HIDE switchbar then u can do:
alt+o->display
and there, uncheck "show switchbar"

You 1/2 understand me. I know how to hide the switchbar (and that's what I meant in my post) but I want to be able to do it via mIRC script.

u can't

That's why he made a feature suggestion.