This thread made me a little sad that I bought the X Superbox back at Xmas. The developer in your linked thread hares off screaming about ffdshow at the drop of a hat. I have no idea why his game engine cares what is decoding the audio, but I'm guessing he should have made it an internal dependency instead of pointing fingers at every installed codec on your system.
FFDSHOW is *the* standard. If your app/game craps bricks when ffdshow is present, there are MANY folks, myself included, who will choose a set of quality codecs over your poorly-coded app/game. Hardcode your dependencies if they're fragile, kids. Don't whine and blame your customers.
Back to the matter at hand, the egosoft forum thread listed from the Steam forum thread is awesomeness.http://forum.egosoft.com/viewtopic.php? ... sc&start=0
That app should be able to get you the name, or a list of names, of potential culprits.
Oh, K-Lite is bad for you, just BTW. It's loads better than it used to be, but there are better codecs, and better codec packs out there. I often use CCCP when I'm feeling lazy, but lately I've been installing my own ffdshow builds, and LAV Filters (Google "LAV CUVID" and follow from there) for the machines with good hardware, where I want maximum quality.