I have another library installed in the same folder. But... "can´t install this without a Kontakt Player library with a numeric SNPID to attach"....
Thanks for help!
Viewing post in Glory Days Horns by Orchestral Tools comments
You need a Kontakt Player library in the same directory you're installing this to, and it has to be an older one (for instance, the Kontakt preset library). This is because of a bug in Sibelius that fails to recognise library IDs such as "ID3" as valid Kontakt libraries for autoload. What my script does to make non-Kontakt-player libraries install as autoload is to install a pointer under that library and alter the filenames in the sound set to make Sibelius think that Glory Day Horns is part of that library so it will autoload. That requires a "host" library, but one which is old enough to have a library ID (SNPID) of between 001 and 999. There's a list somewhere on the internet which tells you what those libraries are - I'm sure you have one somewhere.
It sounds like you're talking about the actual library: I think that that needs full Kontakt to work (and my sound sets support versions 5 and 6 - Sibelius can't even talk to Kontakt 7 on Windows. In modern versions of Kontakt all libraries need to be registered through Native Access.
My sound set works by copying the library to essentially pretend it's part of another library. But you'd still require a full version of Kontakt 5/6 for that to work on Sibelius Windows. Sibelius Mac can talk to Kontakt 7 through AU. So Kontakt already broke compatibility with Windows Sibelius, and I wouldn't be surprised if it broke Mac next.