Update tests

samples/CSharpWpf/App.xaml.cs

@@ -1,8 +1,35 @@
 using System.Windows;
+using Velopack;
 
 namespace CSharpWpf
 {
     public partial class App : Application
     {
+        public static MemoryLogger Log { get; private set; }
+
+        // Since WPF has an "automatic" Program.Main, we need to create our own.
+        // In order for this to work, you must also add the following to your .csproj:
+        // <StartupObject>CSharpWpf.App</StartupObject>
+        [STAThread]
+        private static void Main(string[] args)
+        {
+            try {
+                // Logging is essential for debugging! Ideally you should write it to a file.
+                Log = new MemoryLogger();
+
+                // It's important to Run() the VelopackApp as early as possible in app startup.
+                VelopackApp.Build()
+                    .WithFirstRun((v) => { /* Your first run code here */ })
+                    .Run(Log);
+
+                // We can now launch the WPF application as normal.
+                var app = new App();
+                app.InitializeComponent();
+                app.Run();
+
+            } catch (Exception ex) {
+                MessageBox.Show("Unhandled exception: " + ex.ToString());
+            }
+        }
     }
 }