System.Net.UnsafeNclNativeMethods.FetchConfigurationString C# (CSharp) Method

        internal static extern bool FetchConfigurationString(bool perMachine, String parameterName, StringBuilder parameterValue, int parameterValueLength);

        private static string ReadConfigString(String ConfigName)
        {
            const int     parameterValueLength = 255;
            StringBuilder parameterValue       = new StringBuilder(parameterValueLength);
            bool          rc = UnsafeNclNativeMethods.FetchConfigurationString(true, ConfigName, parameterValue, parameterValueLength);

            if (rc)
            {
                return(parameterValue.ToString());
            }
            return("");
        }