Windows 7 on Netbooks a.k.a laptops with no optical drives - how-to install from USB

So you have a netbook/sub-notebook without an optical drive, and you are wondering whether to get a new external USB Optical DVD drive to install the new Windows 7 DVD that you bought. Well hold on, before you make that purchase you can actually do the install without the DVD drive but you must have a >4GB USB pen/keychain drive.

First up prepping the USB drive:
I was using a Linux system so I used:
fdisk sdb
create ntfs paritition
set it to bootable
mkfs -t ntfs /dev/sdb1
copy over all the files in the DVD to /dev/sdb1

Once that is done, we _need_ a windows system to run a program called bootsect.exe.(packaged in the DVD under /boot)

Get on a windows system, plug-in you USB, run USBDRIVE:/>boot/bootsect.exe /nt60 USBDRIVE:

If it returns successfully, you can try boot from the USB.

I set this up successfully on a HCL MiLeap MH02 system.