Well, this is what I do. I backup the old version, run the uninstall, install the newest version, then copy/paste the old files back but when prompted to overwrite say 'No'. This way the v2.16.2 patched files don't get overwritten but the other files get put back in the 'extreme' directory.
The only other thing I did was rename 'eq2ui_popup_claim.xml' and 'eq2ui_mainhud_persona.xml' so this way I'd get the default for those 2 windows.
Works for me
