I have two classes: Action class, that has a method for executing VBScript files, and Item class that contains a list of Action instances. My problem is that I want to limit the number of VBScript files that can be run at the same time. I have no experience with this, and I have googled and searched around, but found nothing. My only idea of how to do is is presented here:

using System;
using System.Collections;
using System.ComponentModel;
using System.Diagnostics;

namespace Test
{
    public class Action
    {
        public string Script;
        public static int Limit;
        public static int ActiveCount = 0;

        public Process process = new Process();

        public Action(string script)
        {
            Script = script;
        }

        public void Execute()
        {
            process.EnableRaisingEvents = true;
            process.Exited += new EventHandler(Handler);

            try
            {
                if (ActiveCount < Limit)
                {
                    process = Process.Start(
                         "c:\windows\system32\wscript.exe",
                         """ + Script + """);
                    ActiveCount++;
                }
            }
            catch(Win32Exception e)
            {

            }
        }

        private void Handler(
            object sender, EventArgs e)
        {
            ActiveCount--;
        }
    }

    public class Item
    {
        public ArrayList Actions = new ArrayList();
    }

    class Program
    {
        static void Main()
        {
            Action.Limit = 5;

            Item item = new Item();


            item.Actions.Add(
                new Action("C:\Scripts\Test_1.vbs"));

            for (int i = 0; i < 10; i++)
            {
                foreach (Action action in item.Actions)
                {
                    action.Execute();
                    Console.WriteLine(Action.ActiveCount);
                }
            }
        }
    }
}

The requirement of limiting the number of created processes seems common to me, but as I said, I haven t been able to find any samples I could build on. My question is: what is the common or usual way of doing this? (I also haven t been able to find any samples here on StackOverFlow, so if there are any, please post the link). Any hint or a link is welcome.