SCW registration will fail on non-English versions of Exchange 2007 running on Windows MUI mode Secure Configuration Wizard (SCW) registration is necessary to use SCW with Exchange 2007 on Windows Multilingual User Interface (MUI) Pack mode. SCW registration will fail on a server that has a non-English version of Exchange 2007 installed. To work around this issue, open Exchange2007.xml and Exchange2007Edge.xml files in the <installdir>\scripts folder and then change the LocaleID setting to "0409" within the SCWLocalization tag.