internal OcspResponderMemberInfo(String serverName)
        {
            ComputerName = serverName;
            var ocspAdmin = new OCSPAdminClass();

            try {
                ocspAdmin.Ping(serverName);
                IsRunning = true;
            } catch { }
        }
        ///  <summary>
        ///  Writes this object to a securable object's Access Control List.
        ///  </summary>
        ///  <exception cref="ServerUnavailableException">
        ///         The target Online Responder server could not be contacted via remote registry and RPC protocol.
        ///  </exception>
        public void SetObjectSecurity()
        {
            var ocspAdmin = new OCSPAdminClass();

            try {
                ocspAdmin.SetSecurity(ComputerName, GetSecurityDescriptorSddlForm(AccessControlSections.All));
            } catch (COMException cex) {
                if (cex.ErrorCode == Error.RpcUnavailableException)
                {
                    var e = new ServerUnavailableException(ComputerName);
                    e.Data.Add(nameof(e.Source), OfflineSource.DCOM);
                    throw e;
                }
            } finally {
                CryptographyUtils.ReleaseCom(ocspAdmin);
            }
        }