how can i install it silently?

What I did:

sorry I made this with Dutch version but still works

Extract the package with winrar or something else.
Select all the files you extracted and make a SFX file,
write into the SFX:

Setup.exe -s in your SFX
Extract to temporaly folder
collapse Startdialog hidden
collapse All files rewritten and hit ok.

regards.

In shortly:

Setup=Setup.exe -s
TempMode
Silent=2
Overwrite=1
Title=Patch Powerdvd 6

thanks