Audio is perfect in sync for me. So the software definitely works.
http://youtu.be/2J18DptDgvs?t=1m40snot asynch at all. Perfect in sync. Recorded at 2048x1152 resolution. So if DXTory is the cause, why it works for me and so many other?
Other games work as well.
Have you tried with my called sync lock and wait for buffer option? You didnt say it.
Have you tried without rawcap?
Also with bandicam you shouldnt use H.264 for AVI ....
I gave you some quotes why it is bad. And it gets even more bad if you do re-encode it again after capturing....
You have to use bad compression settings for the capturing too, because you have to watch cpu usage. All in all its just bad to use H.264 or any lossy codec for capturing ....
But ok do what you want

Really: If you are so pissed off, that you even dont want to getting help - I would offer you, that I give you the money and you me the licence file. I already have a licence, but I would give it someone else if its ok with exkoder.
But wouldnt it be more helpful to find a solution for you, instead of yelling how bad the software in your opinion is, because YOU have problems with it?