Translate the English [CustomMessages]
from the installer (and any include
files).
For example, the default (English) strings:
; Misc rsDefault=Default rsLanguage=Language rsDestinationLocation=Destination Location rsXIsRequired=%s is required.
Translated strings:
; Misc Korean.rsDefault=초기화 Korean.rsLanguage=언어 Korean.rsDestinationLocation=목적 위치 Korean.rsXIsRequired=%s is required.