Microsoft KB Archive/906154

= The Microsoft Exchange System Attendant service may not come online if the RootVer registry value is invalid on a server that is running Exchange Server 2003 =

Article ID: 906154

Article Last Modified on 10/25/2007

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APPLIES TO


 * Microsoft Exchange Server 2003 Enterprise Edition
 * Microsoft Windows 2000 Advanced Server
 * Microsoft Windows 2000 Datacenter Server

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Important This article contains information about how to modify the registry. Make sure to back up the registry before you modify it. Make sure that you know how to restore the registry if a problem occurs. For more information about how to back up, restore, and modify the registry, click the following article number to view the article in the Microsoft Knowledge Base:

256986 Description of the Microsoft Windows registry



SYMPTOMS
The Microsoft Exchange System Attendant service may not come online on a server that is running Microsoft Exchange Server 2003 in a Microsoft Windows 2000 active/passive cluster. Additionally, events that are similar to the following may be logged in the Application log:

Event Type: Error

Event Source: MSExchangeSA

Event Category:

Event ID: 1031

Description: One of the System Attendant's task is blocked.

Event Type: Error

Event Source: MSExchangeMU

Event Category:

Event ID: 1043

Description: Metabase Update failed to initialize enumerator of virtual server on cluster database. Error code is error 800706b5.

Event Type: Error

Event Source: MSExchangeMU

Event Category:

Event ID: 1042

Description: Metabase Update failed to read the Configuration namespace property from the domain controller. Error code is 80040a01.

Event Type: Error

Event Source: POP3SVC

Event Category:

Event ID: 1036

Description: An error occurred while starting the Microsoft Exchange POP3 Service: server instance number 1 failed to start with error 0x80040a01.

Event Type: Error

Event Source: IMAP4SVC

Event Category:

Event ID: 1036

Description: An error occurred while starting the Microsoft Exchange IMAP4 Service: server instance number 1 failed to start with error 0x80040a01.

Event Type: Error

Event Source: MSExchangeCluster

Event Category:

Event ID: 1019

Description: Exchange System Attendant: Failed to bring this resource online because of timeout.

Event Type: Error

Event Source: MSExchangeCluster

Event Category:

Event ID: 1003

Description: Exchange System Attendant: Failed to bring the resource online.

Event Type: Error

Event Source: MSExchangeCluster

Event Category:

Event ID: 1012

Description: Exchange Information Store Instance: The RPC call to the service to take the resource offline failed.

Additionally, you may experience the following symptoms when this problem occurs:
 * The Microsoft Exchange Information Store service may not start.
 * The store databases may not start.
 * The Post Office Protocol version 3 (POP3) service may not start.
 * The Internet Message Access Protocol version 4rev1 (IMAP4) service may not start.



CAUSE
This problem occurs if the RootVer registry value is invalid.



RESOLUTION
Warning Serious problems might occur if you modify the registry incorrectly by using Registry Editor or by using another method. These problems might require that you reinstall your operating system. Microsoft cannot guarantee that these problems can be solved. Modify the registry at your own risk.

If the computer is running the Microsoft .NET Framework 1.1, set the RootVer registry value to 1.1.4322.0. To do this, follow these steps:  Click Start, click Run, type regedit, and then click OK. Locate and then click the following key:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\ASP.NET

 Double-click the  value, type 1.1.4322.0 in the Value data box, and then click OK. Quit Registry Editor.



STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the &quot;Applies to&quot; section.

<div class="moreinformation_section">

MORE INFORMATION
This problem may also occur in the following scenarios: <ul> When you remove Active Directory from the domain controller, the ASPNET security account is removed. Therefore, the metabase update service may not be able to start. Additionally, several events that are mentioned in the &quot;Symptoms&quot; section may be logged in the Application log. To resolve this problem, reinstall Exchange Server 2003.</li> When there is a permissions issue, several events that are mentioned in the &quot;Symptoms&quot; section may be logged in the Application log. To resolve this problem, run the Exchange Server 2003 Setup program by using the /domainprep switch, as in the following example:



</li></ul>

Keywords: kbexchcluster kbprb KB906154

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