Have you tried the following?
If you've extracted all of the contents, you'll see an infopathwwr folder, grab the config.xml file, and modify the XML file like this:
<Display Level="none" CompletionNotice="no" SuppressModal="yes" AcceptEula="yes" />
Copy and paste the config file to the root of the installation folder so that it is alongside setup.exe, autorun.inf, setup.dll, and readme.htm.
when double-clicking Setup.exe or running it from cmd, it will be silent. Check task manager to see if setup.exe is running. or setup bootstrapper on Win10.
It should be noted that the extraction process has to be done via the exe's /extract command line switch, not via a zip/rar program that identifies the exe as an archive and can open it for manual extraction.