http://www.konfabulieren.com/2006/03/22/bart-pe-xp-mit-software-raid-support/ http://www.mefeedia.com/entry/setup-raid1-on-windows-xp-professional/5837250/

make temporary folder

expand dmadmin.ex_ expand dmconfig.dl_ expand dmboot.sy_

or copy from C:\windows\system32 to temporary folder

use hex editor

dmboot.sys:
before:
0000f1f0h: 74 00 54 00 79 00 70 00 65 00 00 00 57 49 4E 4E ; t.T.y.p.e…WINN
0000f200h: 54 00 00 00 53 45 52 56 45 52 4E 54 00 00 00 00 ; T…SERVERNT….
after:
0000f1f0h: 74 00 54 00 79 00 70 00 65 00 00 00 53 45 52 56 ; t.T.y.p.e…SERV
0000f200h: 45 52 4E 54 57 49 4E 4E 54 00 00 00 00 00 00 00 ; ERNTWINNT…….

dmconfig.dll:
before:
00005140h: 4C 41 4E 4D 41 4E 4E 54 00 00 00 00 53 45 52 56 ; LANMANNT….SERV
00005150h: 45 52 4E 54 00 00 00 00 57 49 4E 4E 54 00 00 00 ; ERNT….WINNT…
after:
00005140h: 4C 41 4E 4D 41 4E 4E 54 00 00 00 00 57 49 4E 4E ; LANMANNT….WINN
00005150h: 54 00 00 00 00 00 00 00 53 45 52 56 45 52 4E 54 ; T…….SERVERNT

dmadmin.exe:
before:
00001c30h: 73 65 72 76 65 72 6E 74 00 00 00 00 6C 61 6E 6D ; servernt….lanm
00001c40h: 61 6E 6E 74 00 00 00 00 50 72 6F 64 75 63 74 54 ; annt….ProductT
after:
00001c30h: 77 69 6E 6E 74 00 00 00 00 00 00 00 6C 61 6E 6D ; winnt…….lanm
00001c40h: 61 6E 6E 74 00 00 00 00 50 72 6F 64 75 63 74 54 ; annt….ProductT

change attr to read only

copy back to C:\windows\system32 \drivers AND to C:\windows\system32\dllcache copy back to C:\windows\system32 \drivers AND to C:\windows\system32\dllcache copy back to C:\windows\system32 \drivers AND to C:\windows\system32\dllcache

yes…do that atleast 3 times.