The solution I am looking at is to install windows 7 on a remote computer which does not have CD driver or USB drive, which means I have to install it over a network. So for this I have to boot Windows PE from network using a TFTP server and then install windows. For creation of that windows PE boot files, I followed the process in http://etherboot.org/wiki/winpe and created a boot folder. But the problem is I am unable to boot a new machine from that folder and I was getting that error message shown in my previous post in the thread.
It would be great if you could help me with that.