O'RLY ?
http://www.mediacoderhq.com/dlfull.htm
When started instaler, Avira alerted about %Temp%\rkv.dat
Then about %Temp%\rkverify.exe
Only then installer appeared on screen and in its wizard once i was able to either accept rkv. However, would i deny it, MC just would not install.Either both installed, or both rejected. However at the time of this choice, rkverify.exe was already dropped and lanuched.