I wish I could help you, but I have gotten that error before as well. I'm not sure why. It didn't do that to me before but now it's pretty consistent. Luckily I have an old folder with everything already sourced into it, so I've been using that every time I try a reinstall.
Okay, it stopped giving me that error. I uninstalled Perl, MySQL, EQ, and removed any .ini's or registry crap they left behind. That may be overboard, but after wiping the slate clean, I finally don't get the sourcing error anymore.
Everquest is a registered trademark of Daybreak Game Company LLC.
EQEmulator is not associated or affiliated in any way with Daybreak Game Company LLC.
Except where otherwise noted, this site is licensed under a Creative Commons License.