K-Lite has been good over the years for me also. Like anything, you gotta watch where you download it from, and what you may get included that you didn't ask for.
99% of the time there is a way to opt out of any extra crap (as Noel mentioned).

/Why would I want a free trial of McAfee Antivirus from an mp3 software installer?? Nope, uncheck that/

Example: I Googled Malwarebytes Antimalware. The first link is the official site.
The second link is CNet. I'd closely watch anything from CNET for 'extras'.
Like I said, you can usually opt out, but you have to be vigilant.
K-Lite (due to its success/popularity) has joined the ranks of those that get this kind thing. The codec itself is fine, it's usually the installer that needs your attention.


Make your sound your own!
.. I do not work here, but the benefits are still awesome