Even with this, I have that audio problem. And the overly complicated readme fix doesn't work for me. I have vaguely similar lines in my system.ini file, but none that match what it says to remove. I guess I could remove the vaguely similar ones. Unless someone has a better suggestion.
Oh yeah, and during Freelancer setup this dcsetup.exe file tries to access the internet, and installs DRM files for MS. Search for drmclien.