How can I make Windows XP bootable from a flash drive? [duplicate]

Question

Possible Duplicate:
Install Windows XP to USB Hard Drive and Run from It
Can I run Windows XP from a USB flash drive?

I know how to make a bootable flash drive, but when I attempted to make Windows XP boot up it said

BOOTMGR is missing.

I tried it with two .iso files, but got the same error. What can I do to make Windows XP bootable from a flash drive?

Answer 1

I've used WinToFlash to successfully install Windows XP RTM on an Asus EEE PC 900HD.

Wanted to install a nLite'd version with SP3 slipstreamed but got BSODs on install. RTM ("SP0") worked OK though.