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        [WebMethod]
        public byte[] GetFile(string filename)
        {
            
            if (File.Exists(filename))
            {
                FileStream stream = new FileStream(filename, FileMode.Open);
                byte[] result = new byte[(int) stream.Length];
                stream.Read(result, 0, (int) stream.Length);
                return result;
            }
            return null;
        }                    

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        private void button1_Click(object sender, EventArgs e)
        {
            localhost.Service1 service = new WindowsApplication1.localhost.Service1();
            FileStream stream = new FileStream(textBox2.Text, FileMode.CreateNew);
            byte[] data = service.GetFile(textBox1.Text);
            stream.Write(data, 0, data.Length);
            stream.Close();
        }