stopping explorer.exe

I have search all over the internet and made many posts on different forums for weeks and now i am here, I am looking for a way to stop the explorer.exe process from starting after login maybe with a

batch file so it can be automated.
I am using winxp pro vlk edition sp2 updated. I have tried tskill, taskkill and autoruns but none seem to work. let be break them down:

tskill will only kill process and allow it to restart ( explorer restarts its self )
BATCH CODE:
@echo off
tskill explorer
taskkill: this will not work its gives an error: "no such interface supported" (I tried to search for this error with no luck)


BATCH CODE:
@echo off
taskkill /f /im explorer.exe
Using the pid switch will not work because explorer will use a different pid every time its restarts.


autoruns: this just don't do crap for me (explorer.exe only tested)

I tried changing the shell reference in the registry but it killed explorer for the administrator account too.

I forgot to tell you that stoping this process is only required for a user and not the admin account thats why I am leaning towards a batch file or some script which can be ran on that user account only.


Anyway, I would appreciate any help from anyone. I must say that taskkill, using the code above WORKS on ever other computer i have tried it on except this one. So i would seem there is a problem with this computer.
Now, this is a new install of windows all updated and no other programs installed, I need get this computer ready so as to create a master image for deployment to 250+ computers within a school.

You can do this via GPO, we do something similar with a KIOSK setup where I work.  We do not apply the policy to the PC but to the user so the local admin is not affected.  If you must use a local policy, there are ways to create the policy then revoke the admins right to see the folder where the policy is stored, you can take back the ownership of the folder as needed.