At any time you can choose between the offered languages in that LM "communicates" with you. It refers to menu items, dialog boxes and the help system.
For the very first run of LM the program uses the language that was chosen during the installation. LM will remember in the last used language for the next session.
LM supports English and German. The strings are stored in the encrypted files Ger.lm and Eng.lm (see also: LM file structure).
Menu: Options | Language