I mean, part of it is that I really hated the Fisher Price look to it, but it was also the first time I ever felt like I had to "hack" things to make stuff work. I had to muck with registry keys. Oh, and it was the first time that I noticed that Windows repair tools do not work.

I suspect I might have hated 9x more but I was pretty young when they came out and I didn't really "get into" computers until XP, and I disliked it enough to dual-boot Linux as a twelve year old.