Just install Kontakt 5.3 on my MacOSX 10.6.8 and add NI Factory 5 library without a problems, as the Sonivox Symphonic Strings.
Main problem is with the EWQLSO Gold XP library... stay in tab's but on load tell "Patch won't load, the library must be proper activated ..."
I remember problems on my Windows machine with EWQL Platinum Pro XP, but it works after some tweakings.
Anyone have proper nicnt for Gold XP library ?

 

1 maybe only official nincnt will work but do not exist
2 this lib is really outdated so why do you want?
3 with the old installer should work ok
4 the only version of kontakt that loads all old libs is 5.20

 

hm, no, I just figure out, it's nks library and not need nicnt at all... just

* add library without these files
* do a batch/resave

and it works.