You posted this in the development section and this is not development related, so I moved it to Windows Server Support. Try to make sure you post in the correct section, please.
The wiki page you are referring to is for compiling the source, not a complete guide for setting up a server, so MySQL version isn't exactly relevant there. The correct MySQL version should be added to this wiki page instead:
http://www.eqemulator.net/wiki/wikka...ka=ws992mysql5
Unfortunately, that wiki guide is fairly out-of-date and needs a major overhaul on it. I haven't setup a server from scratch in a long time or I would update it myself. And I don't really want to install a fresh copy of Windows just so I can update a wiki page and verify that each step is 100% correct. At some point, I probably will do it if someone doesn't do it before I do, but reinstalling Windows isn't a plan in my near future atm.