using System;

using System.Collections.Generic;

using System.Linq;

using Newtonsoft.Json;

public class Program

{

    public static void Main()

    {

        string json = @"

            {

                ""Response"": ""valid"",

                ""Files"": {

                    ""0"": {

                        ""FileURL"": ""http://somedomain.com/abc.exe"",

                        ""FileVersion"": 1

                    },

                    ""1"": {

                        ""FileURL"": ""http://somedomain.com/xyz.exe"",

                        ""FileVersion"": 2

                    }

                    ,

                    ""2"": {

                        ""FileURL"": ""http://somedomain.com/def.exe"",

                        ""FileVersion"": 3

                    }

                    ,

                    ""3"": {

                        ""FileURL"": ""http://somedomain.com/ghi.exe"",

                        ""FileVersion"": 1

                    }

                    ,

                    ""4"": {

                        ""FileURL"": ""http://somedomain.com/jkl.exe"",

                        ""FileVersion"": 1

                    }

                    ,

                    ""5"": {

                        ""FileURL"": ""http://somedomain.com/mno.exe"",

                        ""FileVersion"": 3

                    }

                    ,

                    ""6"": {

                        ""FileURL"": ""http://somedomain.com/pqr.exe"",

                        ""FileVersion"": 2

                    }

                }

            }";

        List<LatestFile2> files = ParseJson(json);

        foreach (LatestFile2 file in files)

        {

            Console.WriteLine("Index: "+file.Index+", URL: "+file.FileURL + ", Version: " + file.FileVersion);

        }

    }

     private static List<LatestFile2> ParseJson(string json)

        {

            RootObject obj = JsonConvert.DeserializeObject<RootObject>(json);

            List<LatestFile2> latestfiles = new List<LatestFile2>();

            foreach (KeyValuePair<string, LatestFile> pair in obj.Files)

            {

                LatestFile2 f = new LatestFile2();

                f.Index = pair.Key;

                f.FileURL = pair.Value.FileURL;

                f.FileVersion = pair.Value.FileVersion;

                latestfiles.Add(f);

            }

            return latestfiles;

        }

}

​

public class RootObject

{

    public string Response { get; set; }

    public Dictionary<string, LatestFile> Files { get; set; }

}

​

public class LatestFile

{

    public string FileURL { get; set; }

    public string FileVersion { get; set; }

}

public class LatestFile2

    {

        public string Index;

        public string FileURL { get; set; }

        public string FileVersion { get; set; }

    }