To verify that RPC over HTTP support is installed

  • Make sure that the ValidPorts registry entry is configured correctly and that the RPC over HTTP component is installed on the Exchange 2003 computer.

  • Additionally, view the application log in Event Viewer.

    If the ValidPorts registry entry is configured incorrectly, the Rpcproxy.dll file will not load when a client tries to access the RPC proxy server. In this scenario, the following event is logged to indicate that the Rpcproxy.dll file did not load successfully:

    Event Source: RPC Proxy

    Event Category: Startup

    Event ID: 2

    Date: date

    Time: time

    Type: Error

    User: N/A

    Computer: computername

    Description: The following ValidPorts registry key could not be parsed.

    computername: 100’5000. The RPC Proxy cannot load. The ValidPorts registry key might have been configured incorrectly.

    User Action: Verify that the ValidPorts registry value is set correctly. If the value is not correct, edit the registry key to reflect the correct value.

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