title: Check user language selection in NSIS MUI2
body: <p>I have multiple language packs in my NSIS installer, using the MUI2 interface. Now I try to select the language pack, which is installed by the "Typical" installation type according to the user's chosen setup language. My problem is, that I can't figure out, how to get the user's language selection.</p>
  
  <p>I already tried to access the variables $LANGUAGE and $mui.LangDLL.RegistryLanguage, as well as trying to compare a defined language string to a specific translation string, but without success.</p>