Launch updater code in a separate task

Author: aglab2

StarManager/MainWindow.cs

@@ -14,6 +14,7 @@
 using Newtonsoft.Json;
 using System.Drawing.Imaging;
 using System.Drawing.Drawing2D;
+using System.Threading.Tasks;
 
 namespace StarDisplay
 {
@@ -272,14 +273,21 @@ private void UpdateStars(object sender)
                             MessageBoxButtons.YesNoCancel, MessageBoxIcon.Asterisk);
                             if (result == DialogResult.Yes)
                             {
-                                try
+                                Task.Run(() =>
                                 {
-                                    um.UpdateAndRestart();
-                                }
-                                catch (Exception)
-                                {
-                                    Process.Start(um.DownloadPath());
-                                }
+                                    try
+                                    {
+                                        um.UpdateAndRestart();
+                                        SafeInvoke(() =>
+                                        {
+                                            Application.Restart();
+                                        });
+                                    }
+                                    catch (Exception)
+                                    {
+                                        Process.Start(um.DownloadPath());
+                                    }
+                                });
                             }
                             if (result == DialogResult.Cancel)
                             {

StarManager/Managers/UpdateManager.cs

@@ -129,8 +129,6 @@ public void UpdateAndRestart()
 
             File.Move(filename, oldTempName);
             File.Move(newTempName, filename);
-
-            System.Windows.Forms.Application.Restart();
         }
 
         public Version UpdateVersion()