the problem is happen in "qtplugins" component, i tried to install "QuickTime Alternative" independent by silent, still happen this problem.
i tried your method or author's method, but still not work fine.
it still install in full mode
my codec file is klmcodec100.exe
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the author's method (reference)
Guide for creating a custom silent installation for one of the codec packs
STEP 1: Create a file called silent.inf with the following contents:
[Setup]
Lang=en
Dir=C:\Program Files\K-Lite Codec Pack
Group=K-Lite Codec Pack
NoIcons=0
Components=mpclassic, divxdec, divx, xviddec, xvid, 3ivxdec, 3ivx, wmv, mpeg2, vp3, vp6dec, vp6, dvd, indeo, indeo4, indeo32, huffyuv, msmpeg4, mp3audio, wmaaudio, ac3audio, oggvorbis, aac, musepack, voxware, ape, mp3lame, oggvorbissplitter, matroska, vsfilter, matrixmixer, shoutcast, gspot, fourcc, minicalc, disg400, disffdshow
Dir is the path of the destination folder. If you leave out this line, then it will install into the default folder.
Group is the name of the program group that will be created in your startmenu. If you leave out this line, then it will use the default groupname.
When you set NoIcons to 1, then no group will be created in your startmenu.
Components is a comma-separated list of the components that you want to be installed. If you leave out this line, then it will use the default settings for the components list.
Note: The reason why the settings.inf file is used is because command line calls are limited to 256 characters. And because of the long components list that will lead to problems when you include the components parameter in the command line call.
STEP 2: Put the silent.inf file in the same folder as the installer
STEP 3: Now you can perform a silent installation with the following command line call:
INSTALLERFILENAME /verysilent /loadinf=".\silent.inf"