The installation utility requires you to install at least one language.
During the installation you must choose a default language. If you want to change the default language after installing OpenEdge, see OpenEdge Development: Internationalizing Applications for detailed instructions.
The International Settings dialog box of the installation program creates an OpenEdge Startup (startup.pf) file to accommodate international conventions such as Date format, Number format, Character set, Collation, and Case.
Once you select the default language, the Installation Program copies the contents of the DLC\prolang directory to OpenEdge-install-dir. This affects your empty.db, promsgs, and progress.ini files.
See OpenEdge Development: Internationalizing Applications for more information about the following files:
empty.db in multiple block sizes