Installing windows XP through USB

It is not as easy as with Vista/7 but still possible:
http://en.kioskea.net/faq/3065-installing-windows-xp-from-a-usb-key

Check this post:

https://www.experts-exchange.com/questions/22023634/Windows-XP-usb-install.html?sfQueryTermInfo=1+10+30+from+instal+usb+xp

https://www.experts-exchange.com/questions/24376952/USB-Install.html?sfQueryTermInfo=1+10+30+from+instal+usb+xp

Okay Tell me how to do it with Windows 7

Works for all Vista-family OS's (Vista, 7, 2008, 2008R2):
http://jesscoburn.com/archives/2007/10/15/installing-windows-2008-via-usb-thumbdrive/

If I understand the question right you want to install windows via a stick.
If you would like to install windows by using a usb stick you just copy the files from the dvd to the usb (after you formatted the usb stick as fat32) drive and then make it bootable by using a utility called bootsect
"Bootsect.exe updates the master boot code for hard disk partitions in order to
switch between BOOTMGR and NTLDR.  You can use this tool to restore the boot
sector on your computer."

the command is:
bootsect.exe /nt60 <usb_drive_letter>
so if in explorer your usb stick's drive letter is F: then you would use that.
Reboot, select the first bootable device as your usb drive and it should work.

The bootsect program can be found on the windows dvd inside the boot folder
If you want to boot xp then you would use the /nt51 option.

This can also all be done from a Vista/7 machine through DiskPart and the Command Line, although the use of bootsect is not necessary this way.  Important for those with OEM systems that did not come with a Windows 7 DVD.

Hi,

Pls download this tool from the below link.Then you can install windows xp easily.

http://wintoflash.com/home/en/

Hope you get the solution.If you have any queries,pls ask...

You should be ok with a netbook.

It's the older BIOS machines that tend to be challenging.  See at first BIOSes could not boot from USB at all.  Then they could boot from USB but only floppy, and then later CD was added.  So many times you will see "tricks" that have to be performed to make the USB flash stick formatted to appear as if it is a floppyFS (and of course another trick is how do you get that much information on when a floppy is not supposed to ven be that big?) or a CDFS filesystem to fool the BIOS into booting off it.
For quite awhile USB hard drives came with two partitions on them, first a smaller CDFS partition that "looked" to the computer like a CD so it could boot from that, and then a big FAT or NTFS partition occupying the rest of the drive that the user could use and/or password protect using the software on the CD partition.

But a more modern Netbook BIOS shouldn't have any of those issues and should be able to boot from a bootable USB stick just the same as if it was a USB hard drive.  Load up the usb flash drive as described in the articles, and set the Netbook BIOS setup to boot first from usb, then hard drive.  Then the USB will prompt to strike a key to boot from "CD" or hard drive just as though the usb is the installation media.