I have a net book that does not have a DVD reader/writer and I would like to reinstall XP - what are my options? I was thinking that I could just install from a external HD
get WinToFlash and transfer your XP installation CD to a USB stick or SD card.
then boot from the USB stick or SD card and proceed with the installation as usual.
WinToFlash is freeware.
I used the procedure detailed in this web site: instructions on making USB XP install
I did try the wintoflash but it didn't work in my case