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Friday, September 15, 2006

Exchange: Invalid Window Handle ID no: 80040102 Exchange System Manager


When clicking on the Client Permissions button of a Public folder in Exchange System Manager, you immediately receive Invalid Window Handle ID no: 80040102 Exchange System Manager. Therefore, you are unable to set client permissions for any of your Public Folders.


In this instance, the issue was caused by the Public Folder Hierarchy not having the msExchPFTreeType set. This attribute defines whether your Public Folder Hiearchy is MAPI based or a General Purpose Tree. In an Exchange Org, there can only be one MAPI based Public Folder Hiearchy. However, you can have multiple General Purpose Public Folder Hiearchies. General Purpose Public Folder Hiearchies cannot be accessed via MAPI but via OWA.

To define a MAPI Public Folder Hiearchy, set the msExchPFTreeType to 1.
To define a General Purpose Public Folder Hiearchy, set the msExchPFTreeType to 0.

To verify if your Public Folder Hiearchy is set to 1 follow the procedures below.

1. From your Exchange server or Domain Controller, go to Start, Run, ADSIEDIT.MSC Click Ok. (ADSIEDIT is part of your Windows 2000\2003 Support Tools found on the CD)

2. Expand the Configuration Container.

CN=Microsoft Exchange
CN=Your Exchange Org
CN=Administrative Group
CN=First Administrative Group

Highlight CN=Folder Hierarchies.

On the right pane, highlight CN=Public Folders and select properties. Scroll down to find the attribute, msExchPFTreeType. For the value, check if it is set. If not set, set to 1.

3. Go to services and restart your Microsoft Information store. When service has restarted, open Exchange System Manager, and verify that you can set the Client Permission.


Description of public folder tree types in Exchange 2000 Server and in Exchange Server 2003

James Chong
MCSE M+, S+, MCTS, Security+

How useful was this article? Want to see a tip not listed? Please leave a comment.


Anonymous Anonymous said...

Verry nice, thank you!
Added your Blog to my favorites.

10:10 AM  
Anonymous Anonymous said...

i don't see a folder hierachies

12:02 PM  
Blogger jamestechman said...

Can you tell me where you are in adsiedit? It might not be there if it was deleted for example, then you would have to recreate it.

6:26 PM  
Anonymous Anonymous said...

I received this error on Exchange 2000, and followed your procedure. the attribute was already set to 1, and it still does not work.

10:10 AM  
Blogger adam355 said...

Yep same here already set to 1 and same problem...

8:40 AM  
Anonymous Anonymous said...

Same problem here. Already set to 1, but can't change permissons.

3:05 AM  
Anonymous Anonymous said...

PFDAVAdmin fixes the problem. Works against Exchange 2000, 2003 and 2007. You can download it from microsoft.

10:23 AM  
Anonymous Anonymous said...

I had the same problem.
Moreover I didn't find any Highlight CN=Folder Hierarchies item.
But I have found easy solution. I made a copy of Public folder in Outlook (not in Exchange System Manager), renamed the folder and copied back to Public Folders.Now I can set permissions on the folder. I checked the data and deleted original folder and renamed the new one to its name.

6:28 AM  
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