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The Rpc_Binding_Order registry entry is present

[This topic is intended to address a specific issue called out by the Exchange Server Analyzer Tool. You should apply it only to systems that have had the Exchange Server Analyzer Tool run against them and are experiencing that specific issue. The Exchange Server Analyzer Tool, available as a free download, remotely collects configuration data from each server in the topology and automatically analyzes the data. The resulting report details important configuration issues, potential problems, and nondefault product settings. By following these recommendations, you can achieve better performance, scalability, reliability, and uptime. For more information about the tool or to download the latest versions, see "Microsoft Exchange Analyzers" at http://go.microsoft.com/fwlink/?linkid=34707.]  

Topic Last Modified: 2005-11-18

The Microsoft® Exchange Server Analyzer Tool reads the following registry entry to check for the presence of a client-oriented remote procedure call (RPC) binding order registry entry on the Exchange Server computer:

HKEY_LOCAL_MACHINE\Software\Microsoft\Exchange\Exchange Provider\Rpc_Binding_Order

If the Exchange Server Analyzer finds the Rpc_Binding_Order present, a warning is displayed.

If the Rpc_Binding_Order value is present, it indicates that one or more of the following is installed on the computer:

  • Exchange Server version 5.5
  • Microsoft Office Outlook® 2003
  • Windows Clustering
  • The RPC_Binding_Order entry determines the protocol sequence that is used when Outlook RPC communications are initiated. This entry is not created in Exchange Server 2003 or in Exchange 2000 Server. This entry is only created in Exchange Server 5.5 and in earlier versions of Exchange. If Exchange Server 5.5 or Microsoft Outlook were previously installed on this computer and have since been removed, you can manually remove this registry entry. In addition, you should remove Outlook from any computer running Exchange Server, as that is an unsupported configuration. For more information about running Exchange and Outlook on the same computer, see the Microsoft Knowledge Base article 266418, "Microsoft does not recommend installing Exchange Server and Outlook on the same computer" (http://go.microsoft.com/fwlink/?linkid=3052&kbid=266418).
importantImportant:
This article contains information about editing the registry. Before you edit the registry, make sure you understand how to restore the registry if a problem occurs. For information about how to restore the registry, view the "Restore the Registry" Help topic in Regedit.exe or Regedt32.exe.
  1. Open a registry editor such as Regedit.exe or Regedt32.exe.

  2. Navigate to: HKLM\Software\Microsoft\Exchange\Exchange Provider

  3. Delete the Rpc_Binding_Order value.

  4. Close the registry editor, and restart all Exchange Server services or reboot the Exchange Server computer for the change to take effect.

Before you edit the registry, and for information about how to edit the registry, see the Microsoft Knowledge Base article 256986, "Description of the Microsoft Windows Registry" (http://go.microsoft.com/fwlink/?linkid=3052&kbid=256986).

For more information about the RPC_Binding_Order registry entry, see the following Knowledge Base articles:

 
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