Uninstalling Exchange 2003

I'm trying to uninstall Exchange 2003 from my environment and keep getting the following errors.:

The component "Microsoft Exchange Messaging and Collaboration Services" cannot be assigned the action "Remove" because:
-This server is the Routing Master for the Routing Group "First Routing Group", which contains other servers. You cannot uninstall this server until you either select a new routing master for this routing group, or remove all other servers from this routing group.
-One or more users currently use a mailbox store on this server. These users must be moved to a mailbox store on a different server or be mail disabled before uninstalling this server.
-You cannot remove a server that is a target bridgehead for a routing group connector. This server is a target bridgehead for the following connectors: My new Exchange10- Old Exchange
wmccann09Asked:
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Gerald26Commented:
Hello

A lot must be done after migrating to exchange 2010

Remove routing group connectors
transfert system public folder
migrate all mailboxes
remove rus from AD


hmmm I suggest you read this tutorail, it's really really helpful:
part 1
part 2
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wmccann09Author Commented:
I've migrated all mailboxes that I needed moved. I've deleted all old databases off of the old exchange. I've removed RUS from AD. I've transfered system public folder. I've removed routing group connectors for the old exchange.  Still get the same error message.
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Gerald26Commented:
Have you removed the enterprise recipient update service ?

The Recipient Update Service is the next to remove from the Exchange Server 2003 server. Open the Exchange System Manager and in the Recipients Container select the Recipients Update Service (domain). Right click this Recipient Update Service and select “Delete”. To remove the Enterprise Recipient Update Service it’s not possible to use the Exchange System Manager. To remove this you have to use ADSIEdit.
 
Open ADSIEdit and open the Configuration Container in Active Directory. Navigate to the

“CN=Recipient Update Services,CN=Address Lists Container,CN=Inframan, CN=Microsoft Exchange,CN=Services,CN=Configuration,DC=inframan,DC=local”
 
container. There you’ll find the Recipient Update Server (Enterprise) object. Right click this object and select “Delete”.
 
The Exchange 2003 Mailbox Server is the last Exchange 2003 server and is ready to be removed. As with the Front-End server please remove it using the Add/Remove Programs option in the server’s control panel.
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Gerald26Commented:
This server is a target bridgehead for the following connectors: My new Exchange10- Old Exchange

oh, and finally you can remove routing group connectors

get-routinggroupconnector "My new Exchange10- Old Exchange" | remove-routinggroupconnector
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wmccann09Author Commented:
I do not see this path in adsiedit: CN=Recipient Update Services,CN=Address Lists Container,CN=Inframan, CN=Microsoft Exchange,CN=Services,CN=Configuration,DC=inframan,DC=local”
 
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Gerald26Commented:
ok, just replace dc=inframan,dc=local with your domain name (ie dc=mydomain,dc=local)

detailled steps
it's for 2007 but 100% works with 2010
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Gerald26Commented:
I Uninstalled a few 2003 this morning after migrating a whole organization to 2010, and I thought about you since I got this message too.
There were some SystemMailboxes migrated from older exchange migration into this server. The shortest way for me was to delete the microsoft system attendant user object using adsi edit. (in CN=server,cn=1st admin group,cn=admin groups,cn=organization,cn=ms exchange,cn=services,cn=configuration,dc=domain,dc=local because its HomeMDB attribute was still on the server exchange wouldnt uninstall.

Everything went very well.
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wmccann09Author Commented:
I'm not seeing that path in adsi edit
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Gerald26Commented:
Ok tell me which path you dont see (use number 1 to56)


1> services,cn=configuration,dc=domain,dc=local

2>cn=ms exchange,cn=services,cn=configuration,dc=domain,dc=local

3>cn=organization,cn=ms exchange,cn=services,cn=configuration,dc=domain,dc=local

4>cn=admin groups,cn=organization,cn=ms exchange,cn=services,cn=configuration,dc=domain,dc=local

5>cn=1st admin group,cn=admin groups,cn=organization,cn=ms exchange,cn=services,cn=configuration,dc=domain,dc=local






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wmccann09Author Commented:
Ok. I see the path now.  So I'm at cn=1st admin group and I've clicked on cn=servers. I see the old exchange server. Do I right click and delete the entire cn=old exchange server?
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Gerald26Commented:
no !

Exchange uninstall will do this, do NOT erase it yourself.
Now that you found the path, delete CN=Recipient Update Services,CN=Address Lists Container in cn=organization,cn=ms exchange,cn=services,cn=configuration,dc=domain,dc=local

Please also remove the leftover connector mentionned by uninstaller. That is the command I gave you yesterday :
get-routinggroupconnector "My new Exchange10- Old Exchange" | remove-routinggroupconnector

If there is still a systemmailbox making the unisntaller fail then you can delete ONLY the System attendant user object under
cn=server,cn=1st admin group,cn=admin groups,cn=organization,cn=ms exchange,cn=services,cn=configuration,dc=domain,dc=local

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wmccann09Author Commented:
Just so I understand correctly. I'm now going to delete cn=recipient update services folder.
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Gerald26Commented:


Navigate to CN=Configuration/CN=Services/CN=Microsoft Exchange/CN=First Organization/CN=Address Lists Container/CN=Recipient Update Services.  In the middle pane delete each of the Recipient Update Services listed.

 rus02.png


Source
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wmccann09Author Commented:
Done.  Now I'm going to ESM, Administrative Groups, Exchange Adminstrative Group, Routing Groups, Connectors, and I'm going to delete "New Exchange-Old Exchange along with Internet Connector.  Right?
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Gerald26Commented:
Its a good way to go it, but it would be better to do it like I suggested, using Exchange 2010 powershell remove-routinggroupconnector cmdlet.

get-routinggroupconnector "My new Exchange10- Old Exchange" | remove-routinggroupconnector


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wmccann09Author Commented:
ok. Routing Group Connectors are gone. There are system mailbox still causing the uninstall to fail.  Can you send me a screen shot of your suggestion because when I follow the path there isn't anything under System Attendant:
 If there is still a systemmailbox making the unisntaller fail then you can delete ONLY the System attendant user object under
cn=server,cn=1st admin group,cn=admin groups,cn=organization,cn=ms exchange,cn=services,cn=configuration,dc=domain,dc=local
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Gerald26Commented:
Hello,

If you are really really sure you migrate all public and private datas, tehn let's make it short: Delete the Mail Private store entry (and public store as well) using adsiedit on the old 2003 server object

This will definitely make your exchange 2003 uninstall process succeed

 13855-fig18-04-0.jpg
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wmccann09Author Commented:
Both Private and Public were not in the old 2003 server object.  They were both already deleted.
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Gerald26Commented:
Can you launch uninstall and copy paste the error message again please ?
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wmccann09Author Commented:
Attached is the error message.
Error-message.doc
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wmccann09Author Commented:
Can anyone help me with this error message that was attached to my last post?  I've had my old exchange 2003 server off the network for 2 months now.  Can I just go to adsideit and delete the old exchange server folder under cn=First admin group | cn=servers | old exchange 2003?
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