unnks extracts data from nks and nkx archives, which are commonly used by several music synthesis programs. It has a similar interface to GNU tar.
It works! Now it is necessary the "unnki". The program files "*.nki" seem to be encrypted. I have unpacked the samples of Chris Hein Horns vol 1 succesfully and I was possible open (and resave as patch + samples)some of the programas with Kontakt 2.0 but none with Kontakt 2.2.1 or superior. Even having all the samples unpacked, when loading an ".nki" program I get a message of "library not registered". There is something else in the Windows XP registry that tells to Kontakt that someone is trying to open a program in an unusual form because after one or two successful loads begin to appear an error of "non registered library" that is not present in the first attemps. Also after one or two succesful loads of ".nki" program files and after I resave them with Kontakt 2.0, the original installation of Chris Hein Horns vol 1 (that remains untouched) looks as it was damaged although I have worked and copied all the files into another folder.
nice job - used with windows XPSP2 on a 600MB NKS without issue. thanks!