I've used RAID slipstreamer to integrate these RAID drivers into a W23k Ent SP1 slip-streamed (critical OS updates) installation. I end up with "The file arcsas.SYS could not be found." press any key to continue (which of course results in the aborted install). In particular I need the ibm ServeRAID 8k controller driver, which is why I'm trying your slip-streamer process. Solution?