Article ID: 888231 - View products that this article applies to.
Microsoft Exchange Server 2003 organizations may experience high network use because of link state updates. Exchange 2003 cannot control link state updates that are caused by user version changes. This article describes a hotfix that you can use to suppress user version changes.
Currently, you can configure the registry to control link state updates that are caused by minor version changes. Minor version changes may include changes that occur on a connector or on a bridgehead server.
Service pack informationTo resolve this problem, obtain the latest service pack for Exchange Server 2003. For more information, click the following article number to view the article in the Microsoft Knowledge Base:
(http://support.microsoft.com/kb/836993/EN-US/ )How to obtain the latest service packs for Exchange Server 2003
Hotfix informationA supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing this specific problem. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next software update that contains this hotfix.
If the hotfix is available for download, there is a "Hotfix download available" section at the top of this Knowledge Base article. If this section does not appear, contact Microsoft Customer Service and Support to obtain the hotfix.
Note If additional issues occur or if any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft Web site:
http://support.microsoft.com/contactus/?ws=supportNote The "Hotfix download available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language.
PrerequisitesThis software update requires Microsoft Exchange Server 2003 Service Pack 1 (SP1).
For more information, click the following article number to view the article in the Microsoft Knowledge Base:
(http://support.microsoft.com/kb/836993/ )How to obtain the latest service packs for Exchange Server 2003
File informationThe English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time tool in Control Panel.
Date Time Version Size File name -------------------------------------------------------------- 09-Feb-2005 04:09 6.5.7232.79 826,368 Reapi.dll
Warning If you use the ADSI Edit snap-in, the LDP utility, or any other LDAP version 3 client, and you incorrectly modify the attributes of Active Directory objects, you can cause serious problems. These problems may require you to reinstall Microsoft Windows 2000 Server, Microsoft Windows Server 2003, Microsoft Exchange 2000 Server, Microsoft Exchange Server 2003, or both Windows and Exchange. Microsoft cannot guarantee that problems that occur if you incorrectly modify Active Directory object attributes can be solved. Modify these attributes at your own risk.
After you install this hotfix, you can use the ADSI Edit tool to suppress user version changes. To suppress user version changes, set the Heuristics property as follows on the organization object:
NoteThe 0x800 value is equal to the decimal value 2048.
Note In the following procedure, you must use the ADSI Edit tool that is included in Microsoft Windows 2000 Server Support Tools.
To edit the CN=OrganizationName attribute, use the following steps:
User version changes occur when there is a base-level directory service update. A base-level directory service update may occur when an Exchange Server administrator changes something at the routing group level. For example, a user version change occurs when an administrator changes a routing group name, adds a server, or removes a server. However, the primary cause of user version changes is the Windows Management Instrumentation (WMI) data that is in each server. This data states which services are running. If you stop and start a service, user version changes in the link state table (LST) will be replicated to all Exchange Server computers in the organization.
For more information about how to configure the registry to control link state updates, click the following article number to view the article in the Microsoft Knowledge Base:
(http://support.microsoft.com/kb/271996/ )SMTP / Routing Group connector state changes cause needless connector state toggling in Exchange 2000 Server
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
This problem was first corrected in Exchange Server 2003 Service Pack 2.