K-Lite uses Inno Setup Installer. For that just use
K-Lite_Codec_Pack_1100_Standard.exe /VERYSILENT /NOCANCEL /NORESTART /SUPPRESSMSGBOXES /LOG="%TEMP%\klite-codec_11.0.0.log"
For more information about msi command line parameters take a look at the following Page:
http://www.jrsoftware.org/ishelp/index.php?topic=setupcmdline
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