using System;

using System.IO;

using CommandLine;

using System.Collections.Generic;

using System.Linq;

using System.Text.RegularExpressions;

public class Program

{

        public static void Main()

        {

            test("\"c:\\program files\\svchost.exe\" -k -s svcName -t \"some text\" -p c:\\temp\\text.txt");

            test("\"c:\\program files\\svchost.exe\"    -k    -s    svcName -t    \"some      text\"");

            test("c:\\progdir\\svchost.exe -k -s svcName -t \"some text\"");  

        }

    private static void test(String cmdLine) {

        Console.Write("\nTest: {0} \n\n", cmdLine);

            List<String> args = parseCommandLineRegEx(cmdLine);

            for (int i=0; i < args.Count(); i++) {

                Console.WriteLine("\t[{0}] {1}", i, args[i]);

            }

    }

    private static List<string> parseCommandLineRegEx(String CmdLine)

    {

         var re = @"\G(""((""""|[^""])+)""|(\S+)) *";

         var ms = Regex.Matches(CmdLine, re);

         List<String> list = ms.Cast<Match>()

             .Select(m => Regex.Replace(

                 m.Groups[2].Success

                 ? m.Groups[2].Value

                 : m.Groups[4].Value, @"""""", @"""")).ToList();

        return list;

    }

}