WinXP Software Raid 5 Modification Question

Hi Guys, I'm currently using WinXP with SP2 and I'm interested to mod the OS for raid 5 support. I read an article on this site (linked below) that show you how to mod it.

http://www6.tomshardware.com/stora [...] index.html

However I came across a problem, the article say three files need to be moded:

dmboot.sys
dmconfig.dll
dmadmin.exe

I have no problem modifying the hex value for dmconfig.dll and dmadmin.exe, but for dmboot.sys I can't seem to match the pattern as shown in the article.

In the article it indicate the original hex code looks like this:

Before:
0000f1f0h: 74 00 54 00 79 00 70 00 65 00 00 00 57 49 4E 4E
0000f200h: 54 00 00 00 53 45 52 56 45 52 4E 54 00 00 00 00

but mine looks like the following:
0000f1f0h: 55 8B EC 83 EC 18 53 8B 5D 0C 56 8B 75 08 57 56
0000f200h: 53 E8 59 76 00 00 8B F8 56 83 C7 08 53 89 7D 0C

The only thing I installed on this system is Service Pack 2, I'm not sure if this has anything to do with it. Did anyone has any solution to this problem? Thanks