If your CPU has more than 8 logical cores (typically a 4 core processor with Hyperthreading or SMT) and you want EQ on all of them, make sure you're using the updated version. I don't know if Creamo's stuff is using the newer version my script. Updated version: https://github.com/LotsofTimeSlices/Everquest/blob/master/Set-EQAffinity.ps1 Explanation: http://www.projecteq.net/forums/index.php?threads/peq-configurator-and-eqswitch.15589/#post-77683