Unrar All

using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.IO;

namespace UnrarAll {
    class Program {
        const string Exec = @"C:\Program Files\7-Zip\7z.exe";
        const string Params = "e \"{0}\" -o\"{1}\" -r";
        const string initialPath = @"C:\Users\Leonardo Leal\Desktop\Puzzle\puzzle.tar.gz";
        static void Main(string[] args) {
            List<string> toDo = new List<string>() {
                initialPath
            };

            List<string> files = new List<string>();

            int count = 0;
            while(toDo.Count != 0) {
                string path = string.Format(@"{0}{1}\", AppDomain.CurrentDomain.BaseDirectory, count++);
                Directory.CreateDirectory(path);

                Process process = Process.Start(Exec, string.Format(Params, toDo[0], path));
                process.WaitForExit();

                foreach(string file in Directory.GetFiles(path)) {
                    string ext = Path.GetExtension(file);
                    switch(ext) {
                        case ".rar":
                        case ".zip":
                        case ".jar":
                        case ".tar":
                        case ".gz":
                        case ".tar.gz":
                        case ".7z":
                            toDo.Add(file);
                            break;
                        default:
                            files.Add(file);
                            break;
                    }
                }

                toDo.RemoveAt(0);
            }

            Console.WriteLine("Done unzipping {0} files", count);
            Console.WriteLine("Files found:");
            Console.WriteLine(string.Join("\n", files));
            Console.ReadLine();
        }
    }
}