Windows 7: New Features Explained using .NET

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using Microsoft.WindowsAPICodePack.Taskbar;
using System.IO;
using Microsoft.WindowsAPICodePack.Shell;

namespace TaskbarDemo
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
            //RegistrationHelper.RegisterFileAssociation("TaskbarDemo", "abc");
        }

        private void hscrTaskbarProgress_Scroll(object sender, ScrollEventArgs e)
        {
            TaskbarManager.Instance.SetProgressState((TaskbarProgressBarState)Enum.Parse(typeof(TaskbarProgressBarState), this.comboBox1.SelectedText));
            TaskbarManager.Instance.SetProgressValue(hscrTaskbarProgress.Value, hscrTaskbarProgress.Maximum);
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            var enums = Enum.GetNames(typeof(TaskbarProgressBarState));
            this.comboBox1.DataSource = enums;
        }

        private void Form1_Shown(object sender, EventArgs e)
        {
            TaskbarManager.Instance.SetProgressValue(0, hscrTaskbarProgress.Maximum);
            TaskbarManager.Instance.SetOverlayIcon(this.Icon, "Taskbar Demo Application");

            JumpList list = JumpList.CreateJumpList();//JumpList.CreateJumpListForIndividualWindow("TaskbarDemo.Form1", this.Handle);
            JumpListCustomCategory jcategory = new JumpListCustomCategory("My New Category");
            
            list.ClearAllUserTasks();
            string desktop = Environment.GetFolderPath(Environment.SpecialFolder.Desktop);
            //jcategory.AddJumpListItems(new JumpListItem(Path.Combine(desktop, "a.abc")));
            list.AddCustomCategories(jcategory);
            
            string systemFolder = Environment.GetFolderPath(Environment.SpecialFolder.System);
            //Add links to Tasks
            list.AddUserTasks(new JumpListLink(Path.Combine(systemFolder, "notepad.exe"), "Open Notepad")
            {
                IconReference = new IconReference(Path.Combine(systemFolder, "notepad.exe"), 0)
            });
            list.AddUserTasks(new JumpListLink(Path.Combine(systemFolder, "calc.exe"), "Open Calculator")
            {
                IconReference = new IconReference(Path.Combine(systemFolder, "calc.exe"), 0)
            });
            list.AddUserTasks(new JumpListSeparator());
            list.AddUserTasks(new JumpListLink(Path.Combine(systemFolder, "mspaint.exe"), "Open Paint")
            {
                IconReference = new IconReference(Path.Combine(systemFolder, "mspaint.exe"), 0)
            });
            //Adding links to RecentItems
            //list.AddToRecent(Path.Combine(systemFolder, "mspaint.exe"));
            list.Refresh();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            Thumbnail th = new Thumbnail();
            th.Show();
        }
    }
}