I tried XP on a PII 333 MHz laptop with 96 MB of RAM. This laptop came with Windows 95 or 98. It still works by the way.

It ran, but it was quite slow. Windows 2000 managed better. Windows 98 even more, but internet on Windows 98, maybe not the best thing to do. Linux even more.

I can't see 233 MHz and 64 MB being reasonable minima, more like very bare minima as in "it boots".

(of course, this does not contradict anything essential from your comment)