I also got the same error "Please select a valid Windows 7 operating system" when I try to use RT7Lite on Windows 8 x86. Did anyone figured out a tool that trims Windows 8 OS?
Randy, I am working on Dual boot between WinPE 2.0 and FreeDOS booting from CD-ROM. I am trying to follow steps mentioned, Could you let me know any link or URL on how to modify .csi files? -Aryan