To be very specific, there is no performance tool for Kontakt 2, but there is one for Kontakt 1. And it isn't for the VSL instruments, but for the Horizon series (Opus 1 +2, etc). And, it didn't come on the original DVDs of the libraries but was a download that you got after you registered. I originally purchased Opus 1 for gig/EXS (downloaded the performance tool for Giga) but then got a sidegrade license to Kontakt 2. Best 80 bucks I ever spent! Soooooo much easier and faster, since it all works within the host and makes it faster to render tracks and such.