The perl revision that is needed can be problamatic as it can vary depending on who does the emulator compile and what version of perl that person is using. Perl x64 is troublesome to say the least, I won't say that it doesn't work but you will run into problems that don't exist in the x86 versions.
If you downloaded your emulator revision from
http://code.google.com/p/projecteqemu/downloads/list I think that it uses ActivePerl-5.8.9.826-MSWin32-x86-290470 and possibly a few revisions earlier will work.
If you haven't already read this:
http://eqemulator.net/forums/showthread.php?t=26643 then do so as it may shed some light on the problems that you are encountering.