Yuri, I know as much as you do, well, actually, less for I do not use dynazip or this method, I use, and I am quite happy with it, a very old library called eeva zipmaster (
http://www.eetasoft.ee/zipmaster.htm), which I mainly like for it allows me to implement its events and show the progress of the operations, which it might be very common with the other libraries, but when I started using this one, it was the only free one that allowed it.
"The five senses obstruct or deform the apprehension of reality."
Jorge L. Borges?
"Premature optimization is the root of all evil in programming."
Donald Knuth, repeating C. A. R. Hoare
"To die for a religion is easier than to live it absolutely"
Jorge L. Borges