• Software Localization Using Multilizer

• Open InnoSetup installer script.
• Add a directive to define language:

  #if AppLangSupp == "<LanguageNameHere>"
    #define <LanguageNameHere>
    ...
  #elif...
  #else
    #define English
  #endif

• Add Language resources under section [Languages]:

  [Languages]
  #ifdef English
  Name: English; MessagesFile: compiler:Default.isl
  #endif
  #ifdef <LanguageNameHere>
  Name: <LanguageNameHere>; MessagesFile: compiler:Languages\<LanguageNameHere>.isl
  #endif

• Add and translate resource strings under section [CustomMessages]:

  [CustomMessages]
  #ifdef English
  SelectDrivers=Select Drivers
  ...
  #endif
  ; <LanguageNameHere> should be replaced by the target language to localize
  #ifdef <LanguageNameHere>
  ;<LanguageNameHere>.String=<TranslatedString>
  <LanguageNameHere>.SelectDrivers=Seleccionar Controladores
  ...
  #endif

Syntax for resource strings to translate:

; <LanguageNameHere>
<LanguageNameHere>.<ResourceStringName>=<ResourceStringValueToTranslate>
...

Example

; English (Default)
rsSelectDrivers=Select Drivers

; Spanish
Spanish.rsSelectDrivers=Seleccionar Controladores
...