Installs it? Is this usb or something, as never heard of a plain mic requiring drivers etc and wondering why Logitech didnt supply with relevant drivers etc (saying they are in sp2, imo, isnt good enough. In answer to your other question, I've got sp2 on my pc, not had an issue with it.........(now watch, it'll crash n burn when I get home lol).
What model of mic is it fella, i'm bored at work and will do some digging around......
Wurzel