You are going to want to uninstall that version of Perl and remove all perl58.dll files from your Perl folders and your system folders.
Go to the link below and install the version Kavren has in that post.
http://www.eqemulator.org/forums/showthread.php?t=31783
If you are trying to use the Rev1612 bot compile found here:
http://code.google.com/p/projecteqemu/downloads/list
I had wierd problems with that as well.