Microsoft KB Archive/327757

= HOW TO: Extend the Active Directory Schema for Exchange Without Installing Exchange =

PSS ID Number: 327757

Article Last Modified on 12/15/2003

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The information in this article applies to:


 * Microsoft Exchange Server 2003 Enterprise Edition
 * Microsoft Exchange Server 2003 Standard Edition
 * Microsoft Exchange 2000 Server

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This article was previously published under Q327757



IN THIS TASK

 * SUMMARY
 * Extend the Active Directory Schema for Exchange
 * REFERENCES



SUMMARY
This article describes how to extend the Microsoft Active Directory directory service schema for Exchange without installing Exchange. After you perform the procedure that is described in this article, the schema for Active Directory Connector (ADC) and Exchange is extended. As a result, you reduce replication traffic.

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Extend the Active Directory Schema for Exchange
When you are ready to install Exchange, you must still run /forestprep. However, the Active Directory schema will be up to date.

NOTE: Use this procedure in situations in which you want to extend the Active Directory schema for Exchange without creating the Exchange organization in Active Directory.

To extend the schema for Exchange:  Insert the Exchange CD, and then go to the Setup\I386\Exchange folder. Copy the Schema0.ldf through Schema9.ldf files from the Exchange folder to a new folder on your local disk.

NOTE: You may want to perform steps 1 and 2 from the command prompt. From the command prompt, move to the new folder on your local disk, and then type:

copy *.ldf exschema.ldf

NOTE: Step 3 concatenates all of the schema files into one file named Exschema.ldf. Start Notepad, and then open Exschema.ldf. On the Edit menu, click Replace. In Find what, type . In Replace with, type the full path to your schema naming context (for example, CN=Schema,CN=Configuration,DC=contoso,DC=com), and then click Replace All.</li> From the command prompt, type ldifde -i -f exschema.ldf -s, where   is the name of a domain controller that is running Windows 2000.</li> Edit the registry to prevent write operations to the schema.For additional information about how to allow and prevent write operations to the schema, click the article number below to view the article in the Microsoft Knowledge Base:

216060 Registry Modification Required to Allow Write Operations to Schema

</li></ol>

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