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:

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.

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, see the Microsoft Knowledge Base article 256986, "Description of the Microsoft Windows Registry" (

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