/Set-SysLocale: Sets the language for non-Unicode programs (also called system locale) and font settings in the mounted offline ...

/Set-SysLocale:

  Sets the language for non-Unicode programs (also called system locale) and
  font settings in the mounted offline image.
  This command is not supported against an online image.

  WARNING: You cannot set Unicode-only languages as the system locale. If you
           try, the /Set-SysLocale option will fail and the language for 
           non-Unicode programs will not be changed.

    Example:
      DISM.exe /Image:C:	est\offline /Set-SysLocale:en-US

/Set-ProvisionedAppxDataFile /CustomDataPath: /PackageName: Use /CustomDataPath to specify the custom data for the app package ... /Set-ScratchSpace:{32|64|128|256|512} Sets the configured amount of Windows PE system volume scratch space. This setting ... /Set-SetupUILang: Defines the default language that will be used by setup. If this language cannot be used, setup will fall ... /Set-SKUIntlDefaults: Sets the default system UI language, the language for non-Unicode programs, the "standards and formats" ... /Set-SysLocale: Sets the language for non-Unicode programs (also called system locale) and font settings in the mounted offline ... /Set-TargetPath: Sets the target path of the Windows PE image. The target path represents a path to the root of the Windows ... /Set-TimeZone: Sets the default time zone in a Windows image. Before setting the time zone, DISM verifies that the specified ... /Set-UILang: Sets the default system user interface (UI) language that is used in the mounted offline image. If the language ... /Set-UILangFallback: Sets the fallback default language for the system UI in the mounted offline image. This setting is used ...