VPC上System.Threading.Parallelが思ったように動かない。

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Threading;

namespace ParallelTestProjects

{

    class Program

    {

        static void Main(string[] args) {

            Action<long> con;

            con = WriteNumericConsole;

            Parallel.For(0, 100,  con);

            Console.Write("Please put any key. : ");

            Console.ReadLine();

        }

        public static void WriteNumericConsole(long i) {

            Console.WriteLine(i);

            return;

        }

    }

}