private void Form1_Load(object sender, EventArgs e) { string text = Application.StartupPath + "\\set.ini"; FileInfo fileInfo = new FileInfo(text); StreamReader streamReader = new StreamReader(text); string text2 = streamReader.ReadLine();; text2 = text2.Substring(8); int num = text2.LastIndexOf("Password=") + 8; string text3 = text2.Substring(num + 1, text2.Length - num - 1); text3 = Form1.DecryptoPassword(text3); string str = text2.Substring(0, num + 1); textBox1.Text = text3; }