Schema Modification Results in Schema Mismatch Event 1203 Message

This article was previously published under Q300642
This article has been archived. It is offered "as is" and will no longer be updated.
After you install a program that modifies the Windows 2000 Active Directory schema or manually modify the schema, you may experience an increase in replication network traffic. The following informational event may also be logged in the Directory Services event log:
Event Type: Information Event
Source: NTDS Replication Event Category:Replication
Event ID:1203
Time:9:33:50 AM
Description: A schema mismatch encountered while replicating object CN=domain,CN=,CN=domain,CN=domain,DC=MYDC,DC=MYDC from server , A schema sync has been queued and sync on DC CN=Configuration,DC=MYDC,DC=com will be retried after the schema sync.
This problem can occur if schema inconsistency failures occur during synchronization until the schema cache is reloaded.
To resolve this problem, obtain the latest service pack for Windows 2000. For additional information, click the following article number to view the article in theMicrosoft Knowledge Base:
260910 How to Obtain the Latest Windows 2000 Service Pack
Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article. This problem was first corrected in Windows 2000 Service Pack 3.

Article ID: 300642 - Last Review: 10/24/2013 06:53:06 - Revision: 3.3

Microsoft Windows 2000 Service Pack 1, Microsoft Windows 2000 Service Pack 2, Microsoft Windows 2000 Advanced Server, Microsoft Windows 2000 Advanced Server, Microsoft Windows 2000 Service Pack 1, Microsoft Windows 2000 Service Pack 2

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