public static void Run(string fileName)
        {
            // DataSet is the object used to interact with the data file.
            // DataSetBuilder creates a DataSet with a pool of binary 
            // readers to perform device lookup using file on disk.
            // The type is disposable and is therefore contained in using 
            // block to ensure file handles and resources are freed.
            using (DataSet dataSet = DataSetBuilder.File()
                // First, the SingleThreadLowMemory configuration template
                // is specified in order to provide initial values for the 
                // cache settings.
                .ConfigureCachesFromTemplate(
                    DataSetBuilder.CacheTemplate.SingleThreadLowMemory)
                // A custom cache implementation is specified to store signatures.
                .SetCacheBuilder(CacheType.SignaturesCache, new CustomCacheBuilder())
                // A null cache is specified for profiles in order to reduce
                // memory usage. This means that profiles will always be
                // loaded from disk when needed.
                .SetCacheBuilder(CacheType.ProfilesCache, null)
                .SetTempFile(false)
                .Build(fileName))
            {
                // Create a provider using the dataset.
                // The provider handles the process of finding a match
                // in the dataset for a given user agent.
                using (Provider provider = new Provider(dataSet))
                {
                    Console.WriteLine("Staring Caching Configuration Example.");

                    // Used to store and access detection results.
                    Match match;

                    // Contains detection result for the IsMobile property.
                    string IsMobile;

                    // User-Agent string of an iPhone mobile device.
                    string mobileUserAgent = ("Mozilla/5.0 (iPhone; CPU iPhone " +
                        "OS 7_1 like Mac OS X) AppleWebKit/537.51.2 (KHTML, like " +
                        "Gecko) 'Version/7.0 Mobile/11D167 Safari/9537.53");

                    // Get a match object and display the IsMobile property
                    match = provider.Match(mobileUserAgent);
                    IsMobile = match["IsMobile"].ToString();
                    Console.WriteLine("   IsMobile: " + IsMobile);
                }
            }
        }