Initial release, all features working as expected

FrmMain.cs

@@ -0,0 +1,25 @@
+using System;
+using System.Windows.Forms;
+
+namespace Longhorn_TN3270
+{
+    public partial class FrmMain : Form
+    {
+        private readonly Keygen _keygen = new Keygen();
+
+        public FrmMain()
+        {
+            InitializeComponent();
+        }
+
+        private void tbxRegCode_MouseClick(object sender, MouseEventArgs e)
+        {
+            tbxRegCode.SelectAll();
+        }
+
+        private void btnSubmit_Click(object sender, EventArgs e)
+        {
+            tbxRegCode.Text = _keygen.Generate(tbxUserName.Text);
+        }
+    }
+}