The LANG
environment variable changes the directory name that is searched for your session configuration files.
The localized session configuration files are:
/usr/dt/config/language/Xresources (Login Manager resource file)
/usr/dt/config/language/sys.font (Session Manager resource file)
/usr/dt/config/language/sys.resources (Session Manager resource file)
/usr/dt/config/language/sys.session (Session Manager executable shell)
/usr/dt/config/language/sys.dtwmrc (Window Manager resource file)
/usr/dt/appconfig/types/language/dtwm.fp (Window Manager Front Panel)