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How to Disable Exchange Extensions property pages in Outlook 2003

Posted on 2009-05-18
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Last Modified: 2012-08-13
Is there a way to disable or uncheck via a GPO, script, or the registry to disable the Exchange Extensions property pages in Outlook 2003?
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Question by:barrykeel
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by:crokeefe28
ID: 24415600
You can find the extension here:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Exchange\Client\Extensions
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Expert Comment

by:crokeefe28
ID: 24415628
The method of installing extensions differs in Exchange Server and Outlook. In Exchange Server, you simply add a new registry entry for the extension in:

HKEY_LOCAL_MACHINE\Software\Microsoft\Exchange\Client\Extensions

In Outlook, in addition to the traditional registry entry for the extension, you must add an entry called "Outlook Setup Extension" (do not localize this string). The value must be:
4.0;Outxxx.dll;7;000000000000000;0000000000;OutXXX
                              
It must be in:

HKEY_LOCAL_MACHINE\Software\Microsoft\Exchange\Client\Extensions


This entry signals Outlook that new extensions have been added or removed. Outlook will remove this entry the next time it is launched.

Note In Windows Vista, Outlook will not be able to delete this key running under a normal user account. Therefore, when installing your Exchange Client Extension you should check for the existence of the key:
HKEY_CURRENT_USER\Software\Microsoft\Office\<version>\Outlook\Exchange Client Extension
and delete it. Outlook will not load your extension if this key exists.
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by:crokeefe28
ID: 24415653
To disable the Property page, you could probably use the start of this article to load the adm template and edit it to your liking:

http://support.microsoft.com/kb/930508

http://office.microsoft.com/en-us/ork2003/HA011513711033.aspx

I vaguely remembering that I had to use the deployment pack to create a new install.
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Author Comment

by:barrykeel
ID: 24416344
OK. I read that link earlier, but was a little unsure of what the string represented. If I read correctly and delete the string I would also lose Exchange extension commands, which I do not want to do. Is that correct? I just need Exchange Extensions property pages disabled. Unfortunately I a list of all Command IDs for Outlook and this tab ID in not in the list.
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Author Comment

by:barrykeel
ID: 24422993
What I am really trying to do is prevent someone from sharing in Outlook. We have other servers that sync calendars with Exchange and if people can share at will it will break our auditing and cause some other issues. I can disable the sharing in contextual menu by assiging a Menu ID thru a GPO. It is the permission tab that is still there under properties. I think I have found the answer as nothing in the registry seems to work. My testing has showed that if I delete the file OUTEX2.ECF located in C:\Program Files\Microsoft Office\OFFICE11\ADDINS the tabs are no longer present when opening Outlook. Wonder if this would cause any other issues?
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Accepted Solution

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barrykeel earned 0 total points
ID: 24458219
Ok. I created the following script and this appears to work. Please see code snippet. However if you look in the ECF file you see the lines:
[Strings]
DisplayName=Exchange Extensions property pages
Description=Out of Office, Folder Design, Forms
; STR 30148 - Synchronization=Synchronization

I am concerned about the words Out of Office. My Out of Office Assistant stills works. What is this for in this ECF file. I know it works but I do not want to break something that I need.
on error resume next
 

Set objFSO = CreateObject("Scripting.FileSystemObject")
 

If objFSO.FileExists("C:\Program Files\Microsoft Office\OFFICE11\ADDINS\OUTEX2.ECF") Then
 

    objFSO.DeleteFile "C:\Program Files\Microsoft Office\OFFICE11\ADDINS\OUTEX2.ECF"
 

End If
 

set objFSO = nothing
 

Const HKEY_LOCAL_MACHINE = &H80000002
 

strComputer = "."
 

Set objRegistry = GetObject _

    ("winmgmts:\\" & strComputer & "\root\default:StdRegProv")
 

strKeyPath = "SOFTWARE\Microsoft\Exchange\Client\Extensions"

strValueName = "Outlook Setup Extension"

strValue = "4.0;Outxxx.dll;7;000000000000000;0000000000;OutXXX"

objRegistry.SetStringValue HKEY_CURRENT_USER,strKeyPath,strValueName,strValue
 

errReturn = objRegistry.SetStringValue _

    (HKEY_LOCAL_MACHINE, strKeyPath, strValueName, strValue)

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