Basically, I have a laptop here that has a fried optical drive. It also can't boot into Vista from the hard disk (hangs on crcdisk). Moreover, the BIOS of this laptop appear to be incapable of booting into a USB CD-ROM drive. As a result, I had to boot into a USB-FDD and use that to gain access to a USB CD-ROM drive and I try to call setup.exe and it says "This program cannot be run in DOS mode." So now I'm trying to find a way launc the Vista install disk from a DOS command prompt. After a lot of googling, I discovered that officially, the only way to do this is via Windows PE. I'm working on downloading the Window Automated Installation Kit but at this point, I am completely lost. Can Windows PE be started from DOS? Can Windows PE launch the Vista install? Any tips on how to do either or both? It sounds to me like WAIK requires a working optical drive as well. Is this computer completely screwed without having a new optical drive installed?