The AddLanguage method adds a new message set to the MessageManager.
MessageManager.AddLanguage(MessageSet, LocaleID)
The AddLanguage method adds a message set to the MessageManager, and associates that message set with a locale. In subsequent calls to MessageManager object methods, the caller needs to identify the message set name, not the locale.
Any number of message sets can be associated with a single locale.
The following example adds a message set called "usa"
to the MessageManager, and uses the MessageManager’s DefaultLanguage property to make the added message set the default message set for the site:
Call MSCSMessageManager.AddLanguage("usa", &H0409)
MessageManager.defaultLanguage = "usa"