The RPC protocol sequence is not supported.
A protocol sequence identifies the network protocols used to establish a connection between the client and server parts of a distributed (RPC) application. Windows 2000 does not support a protocol sequence used in this application.
Contact the supplier of the running application, or contact your technical support group to try to change the protocol sequence. Servers can call the Windows 2000 API function RpcNetworkInqProtseqs( ) to obtain a list of the supported protocol sequences.