Hello!
VI and SYNCHRON-ized Special Edition Volumes 5, 6 and 7 can now be used with Sibelius. Please run the latest VSL Soundset Installer and check the "Optimizing Sibelius Playback" manual on details about how to integrate these libraries into your Sibelius projects.
https://www.vsl.co.at/en/Notation_Related
Best regards,
Andi
Vienna Symphonic Library