The Rpc_Binding_Order registry entry is present

The Rpc_Binding_Order registry entry is present

The Microsoft® Exchange Server Best Practices 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:

HKLM\Software\Microsoft\Exchange\Exchange Provider\Rpc_Binding_Order

If the Exchange Server Best Practices 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 5.5
•	Microsoft Office Outlook®
•	Windows Cluster Service
•	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 and/or Microsoft Outlook were previously installed on this computer and have since been removed, you can manually remove this registry entry.

Important :

This article contains information about editing the registry. Before you edit the registry, make sure you understand how to restore it if a problem occurs. For information about how to do this, view the "Restore the Registry" Help topic in Regedit.exe or Regedt32.exe.

To remove the Rpc_Binding_Order registry entry

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, read the Microsoft Knowledge Base article, "Description of the Microsoft Windows Registry," at http://go.microsoft.com/fwlink/?linkid=3052&kbid=256986.

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