OK guys, I seem to have overcome the localized.key/Catastrophic Failure problem, but I'm not sure exactly what the issue was. I'll retrace my steps and hopefully it'll be useful. Running XP Home SP21-disabled nvidia ActiveArmor firewall2- uninstalled AVG and Comodo3-reinstalled the witcher, patched to 1.34- in msconfig, disabled all startup items and non-essential services. After rebooting, TWEE_Update now had the proper icon(was previously just generic .exe icon) and ran perfectly. Im using the english language pack and the Gamershell d/l of TWEE_update. Hope that helps.