I don't patch cuz I use the soul.exe blacknull method. I tried to log in unpatched and it said invalid version number, update the client. So I patched and realized the speedhack doesn't work =p. Maybe one can take the old patch, replace the soul.exe and play.exe from the new patch, and run the soul.exe blacknull? The downfall of this is the new features may not work. I'll test it later.
If you don't understand blacknull the way it works is you go into the EO software, create a shortcut of soul.exe and past it on your desktop. Then you right click the shortcut and go to edit properties and you add blacknull like this:"C:\Program Files\Eudemons Online\soul.exe" blacknull. Yes, you put a space after the parenthesis and type blacknull. Then you can log in with out autopatch.
I know that has been mentioned in other posts but before someone asks me to elaborate I thought I'd make it clear.