The user interface of License Server Administration tool is English only – not translated.
The error messages returned by the DSL SDK API are English only – not translated.
MineSched or Surpac created text error message –  translated into English, Chinese and Russian.
The error messages support National Language Support (NLS) parameters so that language specific user names, etc. can be displayed/understood. The parameters determine the locale-specific behaviour on both the client and the server side – e.g. a Russian username is understood by DSLS.