Yes. It helped to basically write your own operating system to work around kernel issues. Not really recommended though...

Amazingly, the website is still alive: https://www.sawstudio.com/products_sawstudio.htm I am not brave enough to download and try it out.

(I want to point out that I was not the author of SAW, Bob Lentini was. I worked on integrating SAW with MasterTracks Pro from Passport Designs.)