Meh... Indeed, it works... [Facepalm]
I do recall there was a moment where I downloaded a DLL instead of a zip, and thus did a different thing, allowing the Plugin to be installed. It must have been on the previous computer, since it worked there. I must have overlooked it this time; apparently te symbols of different file types aren't as distinctive, and it was less obvious that this was a DLL rather than the other. This resulted in me trying to fit a square into a circle shaped hole, while not seeing that I am, in fact, holding a square, and not a circle-shaped object. *Gasp* a flaw in the design of Windows 7 (well, not so much a flaw as me being stupid).
Thank you very much, for clearing this out.