Zyxthior
I've just ran into this similar problem....
I tried installing Alcohol 120% (stay with me on this, it involves D-Tools as well) and I came up the same "Found new Hardware RAID/SCSI" and then the pop-up window to find the drivers for this new software. I set it to automatic, the driver won't work, and Alcohol 120% installation reverses itself.
Now, my buddy comes over, tries to install Daemon-Tools 3.47 and the SAME message comes up. Now I've installed D-Tools and Alcohol in the past and I've never seen this issue occur. He has a completely different system than mine...
Jito463
When the message pops up to install the drivers, try manually installing the drivers and point it to Windows\inf\cdrom.inf