static string address = "http://likelgame.ru/update/update.xml"; //Адрес файла (настоящий лол)
         XmlTextReader reader = new XmlTextReader(address);
         int verNow = 0;

         private void Form1_Load(object sender, EventArgs e)
         {
             label1.Hide();
         }

         private void button1_Click(object sender, EventArgs e)
         {
             var ar = new List<string>();
              
             while (reader.Read())
             {
                 switch (reader.NodeType)
                 {
                     case XmlNodeType.Element:

                         if (reader.Name == "update")
                         {
                             //...тут было listBox1.Items.Add(reader.Value);
                         }
                         break;
                 }
             }

             MessageBox.Show("Информация загружена");
         }