Failure

        private void button1_Click(object sender, EventArgs e)


        {
            String Huzuni = "url here";
            String Nodus = "url here";
            String WeepCraft = "url here";
            if (radioButton1.Checked == true)
                using (WebClient webClient = new WebClient())
{
    webClient.DownloadFile(String.Copy(Nodus), @"%appdata%\.minecraft\versions");
}
            if (radioButton2.Checked == true)
                using (WebClient webClient = new WebClient())
                {
                    webClient.DownloadFile(String.Copy(WeepCraft), @"%appdata%\.minecraft\versions");
                }
            if (radioButton3.Checked == true)
                  using (WebClient webClient = new WebClient())
                {
                    webClient.DownloadFile(String.Copy(Huzuni), @"%appdata%\.minecraft\versions");
                }

            if (radioButton7.Checked == true)
                using (WebClient webClient = new WebClient())
                {
                    webClient.DownloadFile(textBox1.Text, @"%appdata%\.minecraft\versions");
                }
            if (radioButton8.Checked == true)
                MessageBox.Show("Why did you download this EL LEGITO?", "Much Legit Very Wow");
            DeflateStream ds = new DeflateStream(File.OpenRead(@"%appdata%\.minecraft\versions\*.zip"), CompressionMode.Decompress);
            MessageBox.Show("Your client has been successfully installed!", "Hooray!");
        }

        private void button2_Click(object sender, EventArgs e)
        {
            Process.Start("http://www.wirez.cf/");
        }
    }
}