Skuzzy, I had a second-hand SB Audigy 1 and I could get drivers from it, from the creativelabs online autoupdater, but I could not get any control over the features of the card (it was basically a sound blaster) until I found a long, convoluted way of installing SB Audigy 2 files onto my Audigy 1. I didn't have the CD so I had to download something, and there was no official version anywhere..
It was a pain, but I got it working. The main reason was that I could not toggle to digital output without these drivers.
From an uninformed end-user point of view, they don't seem that invasive. They install to a simple directory, don't seem to scatter files into the system folders or anything, and don't seem that annoying. All I did was disable some start up processes it installed.
Should I be worried about these files? What have you heard/what do they do that's shady?