I picked up Digital Brain Instruments' Transformer "audio morphing and processing tool" some time ago. It is a standalone (though REWIRE-able) program. It looks like a powerful and very useful program, and I can already think of hundreds of uses for it (and it makes me feel less bad that I can't afford Krotos' tools), but . . . WHY?!?!? Are there legitimate, non-creepy, non-nonconsensual-data-siphoning or privacy-compromising reasonable and technologically valid purposes that would justify this (or any) program's requirement that it "run from the hard disk containing your operating system"? What might they be? Are there any known illegitimate, creepy, nonconsensual-data-siphoning or privacy-compromising purposes that we should worry about when a new program from a currently-unfamiliar developer demands OS drive placement? I'm wondering what Transformer is prevented from doing when its .exe file is double-clicked on the D: drive of a Windows PC, instead of the C: Drive . . . why might it make a difference as to how Transformer functions? There are many reasons why I prefer to install programs on drives other than my OS drive. I don’t think that I’ve ever seen this requirement before and, of course, we now live in an age where way too many programs on way too many devices (and, often enough, the devices themselves) are surreptitiously siphoning away data about each of us without our knowledge or consent. So, I’d really like to understand what’s going on before giving Transformer access to my OS drive, (which is not where I would normally situate it). @EvilDragon, who knows so much about so much, regarding the ways and wiles of the Wonderful and Frightening World of Audio Application Programming: do you have any idea? Does anyone? Thanks!!