it always fails. Getting an error like - Exception: Cannot open file - C:/Users/Public/Daybreak Game Company/Installed Games/EverQuest/EQGraphicsDX9.dll (13) - http://eq.patch.daybreakgames.com/patch/sha/eq/eq.sha.zs... The file may be in use or you may lack the necessary permissions to install.
I'm getting this error right now as well - have three accounts logged in, was trying to log in a 4th and can't get past this error.
Have you tried right clicking and "Run as administrator" ? I have a computer that I have to do that every time there is a patch.
Mine went from doing that to when I finally got it to run the patcher.. it goes to char select and then crashes. Tried it on several accounts, same thing.