RPCRTAPI RPC_STATUS RPC_ENTRY
RpcBindingSetAuthInfoExA( RPC_BINDING_HANDLE Binding, RPC_CSTR ServerPrincName,
                          ULONG AuthnLevel, ULONG AuthnSvc,
                                                    RPC_AUTH_IDENTITY_HANDLE AuthIdentity, ULONG AuthzSvr,
                                                                              RPC_SECURITY_QOS *SecurityQos )