[VB.NET 2005] Risorse del computer

listView1.BeginUpdate();
            DateTime start=DateTime.Now;
            string[] files=Directory.GetFiles("C:\\windows\\system32","*.*");
            for (int i=0;i<files.Length;i++)
            {
                System.IO.FileInfo d=new FileInfo(files[i]);
                listView1.Items.Add(new ListViewItem(files[i]));
                listView1.Items[listView1.Items.Count-1].SubItems.Add(d.Length.ToString());
                listView1.Items[listView1.Items.Count-1].SubItems.Add("test");
                listView1.Items[listView1.Items.Count-1].SubItems.Add("test");

            }
            
 
            DateTime end=DateTime.Now;
            TimeSpan ts=end-start;
            listView1.EndUpdate();
            Console.WriteLine("{0}",ts.TotalMilliseconds);