VSL Special Edition Collection Vol. 3 License, Orchestra Library, includes Appassionata & Muted Strings, all basic articulations, largest String Section of Vienna Symphonic Library including 56 players, especially lyrical, silky shimmering string sounds, Orch. Strings-, Chamber Ensembles and Solo Strings in "con sordino" (muted) variations, alternative Harp 2 (single notes, normal and harmonics), Appassionata Strings (normal and muted), Solo Strings (muted), Chamber Strings (muted), staccato, détaché, sustained, sforzato, legato, portamento, tremolo, pizzicato, Sample Player "Vienna Instrument" included, intelligent detection of your performance, eLicenser (VSL, Steinberg, Syncrosoft) required for product activation (not included), content: software license plus Media-Pack (USB stick including all installation files), Windows 7 or higher, Mac OSX 10.7 or higher, Formats: Stand-Alone, AU/VST/AAX Native/RTAS (requires Pro Tools 7.3 or higher)