public partial class Form1 : Form
	{
		public Form1()
		{
			InitializeComponent();
			myService = new edu.upenn.cis.wren.Hello();
		}

		edu.upenn.cis.wren.Hello myService;

		private void button1_Click(object sender, EventArgs e)
		{
			textBox1.Text = myService.HelloWorld();
		}
	}