The following quotations are from a person with vast multimedia experience.
Feb. 19, 2014 - "I'd suspect that if I put it to the test I'd find that K-Lite, for example, had done more damage (as measured by crash reports) than some notable percentage of actual outright malware."
Mar. 2, 2014 - "At one point 7 of the top 10 crashes in multimedia on Windows lead squarely to problems induced by K-Lite."
Mar. 3, 2014 - "...the fact remains that they (K-Lite) have been one of the most toxic projects ever released for Windows in any form."