Look at rc-file.
Double click Resource files.
PS:
Use correct Language option from properties if you want multilanguage version and use Loadstring() function for strings.
With LANGUAGE keyword you can do it multilanguage.
Example:
LANGUAGE LANG_ENGLISH,SUBLANG_ENGLISH_US
2001 MENUEX
{
POPUP "&File", 0, 0, 0
}
LANGUAGE LANG_FINNISH,SUBLANG_DEFAULT
2001 MENUEX
{
POPUP "&Tiedosto", 0, 0, 0
}