I'm trying to set the following settings for all (default) users:

Internet Options -> Privacy -> Advanced... 
     [X] Override automatic cookie handling
     First-party cookies
     (*) Accept
     Third-party cookies
     (*) Block
     [X] Always allow session cookies

In a Settngs.reg file launched by cmdlines.txt, I have the following:

; Attempt at setting Cookie Settings to First-Party=Yes, Session=Yes, Third-Party=No
[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3]
"1A10"=dword:00000001
"{AEBA21FA-782A-4A90-978D-B72164C80120}"=hex:1a,37,61,59,23,52,35,0c,7a,5f,20,\
  17,2f,1e,1a,19,0e,2b,01,73,13,37,13,12,14,1a,15,2a,4e,2c,08,0d,20,1b,28,18,\
  36,32
"{A8A88C49-5EB2-4990-A1A2-0876022C854F}"=hex:1a,37,61,59,23,52,35,0c,7a,5f,20,\
  17,2f,1e,1a,19,0e,2b,01,73,13,37,13,12,14,1a,15,39,4e,2c,08,0d,20,1b,28,18,\
  36,32

It's not working. Is anyone doing this successfully? I've searched the forums on "+cookies +zone" with no luck...

The IEAK can do this. Download the latest version and install it. Then do a search for the work "cookie" in the ADM files. ADM files are text files, when you find one with the word "cookie" in it - investigate it. Open it up in notepad and see what registry entries it references.

You'll figure it out after poking around.

Whoops, nevermind. Just had a look. The ADM files don't seem to deal with cookie management.

I have been having this problem too using registry settings, not just cookie handling, but advanced options, and security too. Even invoking the settings after log on from runonce doesn't work. I'm guessing that either 'Internet Options', or 'Internet Explorer' needs to be started first, otherwise it overwrites these particular keys with defaults. The options from winnt.sif, (home page etc). and 'policy' registry imports work okay though.

Yzowl: What "advanced options" are you having problems with... I've got most of those licked... it's just my cookies that have crumbled.

Well it appears that very little, if anything in the following RunSec portion of my runonceex.inf, (section requested in green).

[Version]

Signature=$CHICAGO$

[DefaultInstall]

AddReg=RunXP

[RunXP]

- - snip - -

HKLM,"%RunOnceEx%\install55",,,"Applying Security Tweaks"

HKLM,"%RunOnceEx%\install55",1,,"%11%\rundll32 setupapi,InstallHinfSection Security 128 %17%\runonceex.inf"

- - snip - -

[security]

AddReg=RunSec

[RunSec]

HKCU,%Advanced%,

HKCU,%Advanced%,HideFileExt,0x10001,0

HKCU,%Advanced%,NoNetCrawling,0x10001,1

HKCU,%Advanced%,Hidden,0x10001,1

HKCU,%Advanced%,WebViewBarricade,0x10001,1

HKCU,%CabState%,

HKCU,%CabState%,FullPath,0x10001,1

HKCU,%CabState%,Settings,1,0c 00 02 00 0b 01 f8 75 60 00 00 00

HKCU,%FileExt%\.JS,

HKCU,%FileExt%\.JS,Application,,"notepad.exe"

HKCU,%FileExt%\.JS\OpenWithList,

HKCU,%FileExt%\.JS\OpenWithList,a,,"NOTEPAD.EXE"

HKCU,%FileExt%\.JS\OpenWithList,MRUList,,"a"

HKCU,%FileExt%\.JS\OpenWithProgids,

HKCU,%FileExt%\.JSE,

HKCU,%FileExt%\.JSE,Application,,"notepad.exe"

HKCU,%FileExt%\.JSE\OpenWithList,

HKCU,%FileExt%\.JSE\OpenWithList,a,,"NOTEPAD.EXE"

HKCU,%FileExt%\.JSE\OpenWithList,MRUList,,"a"

HKCU,%FileExt%\.JSE\OpenWithProgids,

HKCU,%FileExt%\.OTF,

HKCU,%FileExt%\.OTF,Application,,"notepad.exe"

HKCU,%FileExt%\.OTF\OpenWithList,

HKCU,%FileExt%\.OTF\OpenWithList,a,,"NOTEPAD.EXE"

HKCU,%FileExt%\.OTF\OpenWithList,MRUList,,"a"

HKCU,%FileExt%\.OTF\OpenWithProgids,

HKCU,%FileExt%\.REG,

HKCU,%FileExt%\.REG,Application,,"notepad.exe"

HKCU,%FileExt%\.REG\OpenWithList,

HKCU,%FileExt%\.REG\OpenWithList,a,,"NOTEPAD.EXE"

HKCU,%FileExt%\.REG\OpenWithList,MRUList,,"a"

HKCU,%FileExt%\.REG\OpenWithProgids,

HKCU,%FileExt%\.SHB,

HKCU,%FileExt%\.SHB,Application,,"notepad.exe"

HKCU,%FileExt%\.SHB\OpenWithList,

HKCU,%FileExt%\.SHB\OpenWithList,a,,"NOTEPAD.EXE"

HKCU,%FileExt%\.SHB\OpenWithList,MRUList,,"a"

HKCU,%FileExt%\.SHB\OpenWithProgids,

HKCU,%FileExt%\.SHS,

HKCU,%FileExt%\.SHS,Application,,"notepad.exe"

HKCU,%FileExt%\.SHS\OpenWithList,

HKCU,%FileExt%\.SHS\OpenWithList,a,,"NOTEPAD.EXE"

HKCU,%FileExt%\.SHS\OpenWithList,MRUList,,"a"

HKCU,%FileExt%\.SHS\OpenWithProgids,

HKCU,%FileExt%\.VBE,

HKCU,%FileExt%\.VBE,Application,,"notepad.exe"

HKCU,%FileExt%\.VBE\OpenWithList,

HKCU,%FileExt%\.VBE\OpenWithList,a,,"NOTEPAD.EXE"

HKCU,%FileExt%\.VBE\OpenWithList,MRUList,,"a"

HKCU,%FileExt%\.VBE\OpenWithProgids,

HKCU,%FileExt%\.VBS,

HKCU,%FileExt%\.VBS,Application,,"notepad.exe"

HKCU,%FileExt%\.VBS\OpenWithList,

HKCU,%FileExt%\.VBS\OpenWithList,a,,"NOTEPAD.EXE"

HKCU,%FileExt%\.VBS\OpenWithList,MRUList,,"a"

HKCU,%FileExt%\.VBS\OpenWithProgids,

HKCU,%FileExt%\.WSF,

HKCU,%FileExt%\.WSF,Application,,"notepad.exe"

HKCU,%FileExt%\.WSF\OpenWithList,

HKCU,%FileExt%\.WSF\OpenWithList,a,,"NOTEPAD.EXE"

HKCU,%FileExt%\.WSF\OpenWithList,MRUList,,"a"

HKCU,%FileExt%\.WSF\OpenWithProgids,

HKCU,%FileExt%\.WSH,

HKCU,%FileExt%\.WSH,Application,,"notepad.exe"

HKCU,%FileExt%\.WSH\OpenWithList,

HKCU,%FileExt%\.WSH\OpenWithList,a,,"NOTEPAD.EXE"

HKCU,%FileExt%\.WSH\OpenWithList,MRUList,,"a"

HKCU,%FileExt%\.WSH\OpenWithProgids,

HKCU,%IEMain%,

HKCU,%IEMain%,AutoSearch,0x10001,4

HKCU,%Settings%,

HKCU,%Settings%,CertificateRevocation,0x10001,1

HKCU,%Settings%,PrivacyAdvanced,0x10001,1

HKCU,%Settings%\Cache,

HKCU,%Settings%\Cache,Persistent,0x10001,0

HKCU,%Settings%\Zones\3,

HKCU,%Settings%\Zones\3,{A8A88C49-5EB2-4990-A1A2-0876022C854F},1,\

1a 37 61 59 23 52 35 0c 7a 5f 20 17 2f 1e 1a 19 0e 2b 01 73 13 37 13 12 14 1a 15 3b

HKCU,%Settings%\Zones\3,{AEBA21FA-782A-4A90-978D-B72164C80120},1,\

1a 37 61 59 23 52 35 0c 7a 5f 20 17 2f 1e 1a 19 0e 2b 01 73 13 37 13 12 14 1a 15 2a

HKCU,%Settings%\Zones\3,1400,0x10001,1

HKCU,%Settings%\Zones\3,1402,0x10001,3

HKCU,%Settings%\Zones\3,1405,0x10001,3

HKCU,%Settings%\Zones\3,2004,0x10001,3

- - snip - -

[strings]

- - snip - -

RunOnceEx="Software\Microsoft\Windows\CurrentVersion\RunOnceEx"

Advanced="Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced"

CabState="Software\Microsoft\Windows\CurrentVersion\Explorer\CabinetState"

FileExt="Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts"

IEMain="Software\Microsoft\Internet Explorer\Main"

Settings="Software\Microsoft\Windows\CurrentVersion\Internet Settings"

- - snip - -

Just the cookie stuff? That's what I can't get. All the others (empty temp int files, passive ftp, etc.) are working fine for me tho...

Wow, way to bring back an old resolved topic.

So while searching for Tweaks to improve Internet Browsing, I found the above mentioned OP topic on Speedguide.net. Since there was no resolve for this, I was wondering if anyone has figured out how to get the OP setting in the registry unattended?