Try these tweaks.

I found even though I said no, messenger still shows up when olx or ol is open, and also still enabled as a bho in ms ie.

The only warning is, it is extremely diifficult to reinstall, re-enable, or run ms messenger after applying these tweaks at t-12.

hope this helps

KillMessenger.zip

I had this problem too probably because I also use "provide defaut" in winnt.sif. But I manage to bypass this pb with "sysoc manager" with a txt file and a little cmdline execute in runonceex stage.

-> Components.txt

[Components]AccessOpt = Off

Freecell = Off

Hearts = Off

Minesweeper = Off

Msnexplr = Off

Pinball = On

Solitaire = On

Spider = Off

WMAccess = Off

Zonegames = Off

-> Components.cmd

cmdow @ /HID

SET path=%systemdrive%\install

sysocmgr /i:%windir%/inf/sysoc.inf /u:%path%\Components.txt

-> Runonceex.cmd:

REG ADD %KEY%\015 /VE /D "Configurating Components" /f

REG ADD %KEY%\015 /V 1 /D "%systemdrive%\install\Components.cmd" /f

Works really fine at leat for me

I'm using a similar approach with cmdlines.txt now:

[COMMANDS]
"sysocmgr /q /r /i:%windir%\inf\sysoc.inf /u:..\I386\winnt.sif"

Works great and you don't need a separate text file anymore. The contents of winnt.sif is used instead!

I have this in my winnt.sif:

[Components]

OEAccess=off

I have this in my winnt.sif:

[Components]

OEAccess=off

The problem is that this section (and also the timezone setting) is ignored with UnattendMode=ProvideDefault. If you use UnattendMode=FullUnattended the problem does not exist.