Hello, excuse my bad english. I would to install KMPlayer with my installer (CDMenuStudio) silently, I know that the kmplayer's install is a NSIS, and i try with /S, and work more and less? good. The language selector don't work. I try: /S /LANGUAGE=English, /LANGUAGE="English", /LANGUAGE=ENGLISH, /LANGUAGE="ENGLISH", and it not work. The same that XP Codec Pack 2.4.6 Somebody know how to do it? PD: Also try to modify the installer with NSIS, but i don't know