Set Language by Command Line

Hi there, i am trying to deploy K-Lite Codec Pack by command line !

Here is my command line very simple....cause i've found it with the famous /?

K-Lite_Codec_Pack_1110_Mega.exe /lang=French /verysilent /norestart

But for some reason when i execute the Media Player Classic....it still in English !
How can i setup my deployement in french

Thanks have a good day !

To create a custom silent installation you should use /unattended. /lang only applies to the installer language, and is ignored, because it is available in English only.

MPC should automatically select the language based on the language of Windows. You can manually select it in: Options > Player > language