public static void Main(string[] args)
        {
            try
            {
                //Stopwatch stopWatch = new Stopwatch(); stopWatch.Start();

                Trace.Listeners.Add(new ConsoleTraceListener());
                Trace.Listeners.Add(new LogTraceListener());

                /*
                if (Environment.OSVersion.Platform != PlatformID.Unix)
                {
                    var ver = GetNetVersionFromRegistry();
                    if (ver < 378675)
                    {
                        MessageBox.Show("Zero-K launcher needs Microsoft .NET framework 4.5.1\nPlease download and install it first",
                            "Program is unable to run", MessageBoxButtons.OK, MessageBoxIcon.Error);
                    }
                }
                */

                Directory.SetCurrentDirectory(StartupPath);

                SelfUpdater = new SelfUpdater("Zero-K_NET4.0");

                // if (Process.GetProcesses().Any(x => x.ProcessName.StartsWith("spring_"))) return; // dont start if started from installer
                StartupArgs = args;


                Application.EnableVisualStyles();
                Application.SetCompatibleTextRenderingDefault(false);

                if (!Debugger.IsAttached)
                {
                    AppDomain.CurrentDomain.UnhandledException += CurrentDomain_UnhandledException;
                    Thread.GetDomain().UnhandledException += UnhandledException;
                    Application.ThreadException += Application_ThreadException;
                    Application.SetUnhandledExceptionMode(UnhandledExceptionMode.CatchException);
                }

                //HttpWebRequest.DefaultCachePolicy = new RequestCachePolicy(RequestCacheLevel.NoCacheNoStore);



                Trace.TraceInformation("Starting with version {0}", SelfUpdater.CurrentVersion);

                WebRequest.DefaultWebProxy = null;
                ThreadPool.SetMaxThreads(500, 2000);
                ServicePointManager.Expect100Continue = false;
                if (Environment.OSVersion.Platform != PlatformID.Unix && !Conf.UseExternalBrowser) { Utils.SetIeCompatibility(); } //set to current IE version

                LoadConfig();


                var contentDir = !string.IsNullOrEmpty(Conf.DataFolder) ? Conf.DataFolder : StartupPath;
                if (!Directory.Exists(contentDir) || !SpringPaths.IsDirectoryWritable(contentDir) || pickInitFolder || contentDir.Contains("Local\\Apps"))
                {
                    var dc = new SelectWritableFolder() { SelectedPath = SpringPaths.GetMySpringDocPath() };
                    if (dc.ShowDialog() != DialogResult.OK) return;
                    contentDir = dc.SelectedPath;
                }
                if (Conf.DataFolder != StartupPath) Conf.DataFolder = contentDir;
                else Conf.DataFolder = null;

                if (!SpringPaths.IsDirectoryWritable(StartupPath) || StartupPath.Contains("Local\\Apps"))
                {
                    MessageBox.Show(
                        string.Format(
                            "Please use the newly created desktop icon to start Zero-K not this one.\r\nZero-K.exe will be moved to {0}",
                            contentDir), "Startup directory is not writable!");
                    var newTarget = Path.Combine(contentDir, "Zero-K.exe");
                    if (SelfUpdater.CheckForUpdate(newTarget, true))
                    {
                        Conf.Save(Path.Combine(contentDir, Config.ConfigFileName));
                        Process.Start(newTarget);
                        return;
                    }
                    MessageBox.Show("Move failed, please copy Zero-K.exe to a writable folder");
                }




                SpringPaths = new SpringPaths(null, writableFolderOverride: contentDir);
                SpringPaths.MakeFolders();
                SpringPaths.SetEnginePath(Utils.MakePath(SpringPaths.WritableDirectory, "engine", ZkData.GlobalConst.DefaultEngineOverride ?? TasClient.ServerSpringVersion));

                // run unitsync as soon as possible so we don't have to spend several minutes doing it on game start
                // two problems:
                // 1) unitsync can only be loaded once, even if in a different directory http://msdn.microsoft.com/en-us/library/ms682586.aspx#factors_that_affect_searching
                //  so if we do it in SpringVersionChanged it'll be done at startup for GlobalConst.DefaultEngineOverride, then for no other engine version
                // 2) unitsync can't be unloaded http://stackoverflow.com/questions/1371877/how-to-unload-the-dll-using-c
                // also see EngineDownload.cs
                //SpringPaths.SpringVersionChanged += (s, e) =>
                //{
                //    //System.Diagnostics.Trace.TraceInformation("SpringPaths version: {0}", SpringPaths.SpringVersion);
                //    //new PlasmaShared.UnitSyncLib.UnitSync(SpringPaths);
                //    //SpringScanner.VerifyUnitSync();
                //    //if (SpringScanner != null) SpringScanner.Dispose();
                //    //SpringScanner = new SpringScanner(SpringPaths);
                //    //SpringScanner.Start();
                //};

                SaveConfig();


                try
                {
                    if (!Debugger.IsAttached)
                    {
                        var wp = "";
                        foreach (var c in SpringPaths.WritableDirectory.Where(x => (x >= 'a' && x <= 'z') || (x >= 'A' && x <= 'Z'))) wp += c;
                        mutex = new Mutex(false, "ZeroKLobby" + wp);
                        if (!mutex.WaitOne(10000, false))
                        {
                            MessageBox.Show(
                                "Another copy of Zero-K lobby is still running" +
                                "\nMake sure the other lobby is closed (check task manager) before starting new one",
                                "There can be only one lobby running",
                                MessageBoxButtons.OK,
                                MessageBoxIcon.Stop);
                            return;
                        }
                    }
                }
                catch (AbandonedMutexException) { }

                if (Conf.IsFirstRun)
                {
                    DialogResult result = MessageBox.Show("Create a desktop icon for Zero-K?", "Zero-K", MessageBoxButtons.YesNo);
                    if (result == DialogResult.Yes) 
                    {
                        Utils.CreateDesktopShortcut();
                    }
                    if (Environment.OSVersion.Platform != PlatformID.Unix)
                        Utils.RegisterProtocol();
                }

                FriendManager = new FriendManager();
                AutoJoinManager = new AutoJoinManager();
                EngineConfigurator = new EngineConfigurator(SpringPaths.WritableDirectory);

                SpringScanner = new SpringScanner(SpringPaths);
                SpringScanner.LocalResourceAdded += (s, e) => Trace.TraceInformation("New resource found: {0}", e.Item.InternalName);
                SpringScanner.LocalResourceRemoved += (s, e) => Trace.TraceInformation("Resource removed: {0}", e.Item.InternalName);
                if (Program.Conf.EnableUnitSyncPrompt && Environment.OSVersion.Platform != PlatformID.Unix)
                {
                    SpringScanner.UploadUnitsyncData += MicroForms.UnitSyncUploadPrompt.SpringScanner_UploadUnitsyncData;
                    SpringScanner.RetryResourceCheck += MicroForms.UnitSyncRetryPrompt.SpringScanner_RetryGetResourceInfo;
                }

                SpringScanner.MapRegistered += (s, e) => Trace.TraceInformation("Map registered: {0}", e.MapName);
                SpringScanner.ModRegistered += (s, e) => Trace.TraceInformation("Mod registered: {0}", e.Data.Name);

                Downloader = new PlasmaDownloader.PlasmaDownloader(Conf, SpringScanner, SpringPaths); //rapid
                Downloader.DownloadAdded += (s, e) => Trace.TraceInformation("Download started: {0}", e.Data.Name);

                var isLinux = Environment.OSVersion.Platform == PlatformID.Unix;
                TasClient = new TasClient(string.Format("ZK {0}{1}", SelfUpdater.CurrentVersion, isLinux ? " linux" : ""));

                SayCommandHandler = new SayCommandHandler(TasClient);

                ServerImages = new ServerImagesHandler(SpringPaths, TasClient);


                // log, for debugging
                TasClient.Connected += (s, e) => Trace.TraceInformation("TASC connected");
                TasClient.LoginAccepted += (s, e) =>
                    {
                        Trace.TraceInformation("TASC login accepted");
                        Trace.TraceInformation("Server is using Spring version {0}", TasClient.ServerSpringVersion);
                        if (Environment.OSVersion.Platform == PlatformID.Unix || Conf.UseExternalBrowser)
                            MainWindow.navigationControl.Path = "battles";
                    };

                TasClient.LoginDenied += (s, e) => Trace.TraceInformation("TASC login denied");
                TasClient.ChannelJoined += (s, e) => { Trace.TraceInformation("TASC channel joined: " + e.Data.Name); };
                TasClient.ConnectionLost += (s, e) => Trace.TraceInformation("Connection lost");

                // special handling
                TasClient.PreviewSaid += (s, e) =>
                {
                    var tas = (TasClient)s;
                    User user = null;
                    if (e.Data.UserName != null)
                    {
                        tas.ExistingUsers.TryGetValue(e.Data.UserName, out user);
                        if ((user != null && user.BanMute) || Conf.IgnoredUsers.Contains(e.Data.UserName)) e.Cancel = true;
                    }
                };

                TasClient.Extensions.JsonDataReceived += (eventArgs, o) =>
                    {
                        var command = o as ProtocolExtension.SiteToLobbyCommand;
                        if (command != null)
                        {
                            MainWindow.navigationControl.Path = command.SpringLink;
                            MainWindow.PopupSelf();
                        }
                    };

                ConnectBar = new ConnectBar(TasClient);
                ModStore = new ModStore();
                ToolTip = new ToolTipHandler();
                BrowserInterop = new BrowserInterop(TasClient, Conf);
                BattleIconManager = new BattleIconManager();

                Application.AddMessageFilter(ToolTip);


                SteamHandler = new ZklSteamHandler(TasClient);
                SteamHandler.Connect();


                MainWindow = new MainWindow();

                Application.AddMessageFilter(new ScrollMessageFilter());


                if (Conf.StartMinimized) MainWindow.WindowState = FormWindowState.Minimized;
                else MainWindow.WindowState = FormWindowState.Normal;
                MainWindow.Size = new Size(Math.Min(SystemInformation.VirtualScreen.Width - 30, MainWindow.Width),
                                            Math.Min(SystemInformation.VirtualScreen.Height - 30, MainWindow.Height)); //in case user have less space than 1024x768

                BattleBar = new BattleBar();
                NewVersionBar = new NewVersionBar(SelfUpdater);
                VoteBar = new VoteBar();
                PwBar = new PwBar();

                //This make the size of every bar constant (only for height).
                //We wanted to make them constant because the bar get DPI-scaled twice/thrice/multiple-time (especially for reusable bar). 
                //Setting maximum height upon creation will hopefully make sure it is not DPI-scaled multiple time.
                var votebarSize = new Size(0, VoteBar.Height);
                // Reference: http://stackoverflow.com/questions/5314041/set-minimum-window-size-in-c-sharp-net
                var newversionbarSize = new Size(0, NewVersionBar.Height);
                var battlebarSize = new Size(0, BattleBar.Height);
                var connectbarSize = new Size(0, ConnectBar.Height);

                VoteBar.MinimumSize = votebarSize; //fix minimum size forever
                VoteBar.MaximumSize = votebarSize; //fix maximum size forever
                NewVersionBar.MinimumSize = newversionbarSize;
                NewVersionBar.MaximumSize = newversionbarSize;
                BattleBar.MinimumSize = battlebarSize;
                BattleBar.MaximumSize = battlebarSize;
                ConnectBar.MinimumSize = connectbarSize;
                ConnectBar.MaximumSize = connectbarSize;
                //End battlebar size hax

                if (!Debugger.IsAttached && !Conf.DisableAutoUpdate) Program.SelfUpdater.StartChecking();

                //if (Conf.IsFirstRun) Utils.OpenWeb(GlobalConst.BaseSiteUrl + "/Wiki/LobbyStart", false);

                // download primary engine & game
                MainWindow.Paint += GetSpringZK;
                Downloader.PackageDownloader.MasterManifestDownloaded += GetSpringZK;


                // Format and display the TimeSpan value.
                //stopWatch.Stop(); TimeSpan ts = stopWatch.Elapsed; string elapsedTime = String.Format("{0:00}:{1:00}:{2:00}.{3:00}", ts.Hours, ts.Minutes, ts.Seconds, ts.Milliseconds / 10);
                //Trace.TraceInformation("1 Runtime {0}", elapsedTime);




                Application.Run(MainWindow);
                ShutDown();
            }
            catch (Exception ex)
            {
                ErrorHandling.HandleException(ex, true);
            }
            finally
            {
                ShutDown();
            }
            if (ErrorHandling.HasFatalException && !Program.CloseOnNext) Application.Restart();
        }
        public static void Main(string[] args)
        {
            try
            {
                GlobalConst.Mode =ModeType.Live;
                //Stopwatch stopWatch = new Stopwatch(); stopWatch.Start();

                Trace.Listeners.Add(new ConsoleTraceListener());
                Trace.Listeners.Add(new LogTraceListener());

                if (Environment.OSVersion.Platform != PlatformID.Unix)
                {
                    var ver = GetNetVersionFromRegistry();
                    if (ver < 378675)
                    {
                        MessageBox.Show("Zero-K launcher needs Microsoft .NET framework 4.5.1\nPlease download and install it first",
                            "Program is unable to run", MessageBoxButtons.OK, MessageBoxIcon.Error);
                    }
                }


                Directory.SetCurrentDirectory(StartupPath);

                SelfUpdater = new SelfUpdater("Zero-K");

                // if (Process.GetProcesses().Any(x => x.ProcessName.StartsWith("spring_"))) return; // dont start if started from installer
                StartupArgs = args;


                Application.EnableVisualStyles();
                Application.SetCompatibleTextRenderingDefault(false);

                if (!Debugger.IsAttached)
                {
                    AppDomain.CurrentDomain.UnhandledException += CurrentDomain_UnhandledException;
                    Thread.GetDomain().UnhandledException += UnhandledException;
                    Application.ThreadException += Application_ThreadException;
                    Application.SetUnhandledExceptionMode(UnhandledExceptionMode.CatchException);
                }

                //HttpWebRequest.DefaultCachePolicy = new RequestCachePolicy(RequestCacheLevel.NoCacheNoStore);



                Trace.TraceInformation("Starting with version {0}", SelfUpdater.CurrentVersion);

                WebRequest.DefaultWebProxy = null;
                ThreadPool.SetMaxThreads(500, 2000);
                ServicePointManager.Expect100Continue = false;

                LoadConfig();


                var contentDir = !string.IsNullOrEmpty(Conf.DataFolder) ? Conf.DataFolder : StartupPath;
                if (!Directory.Exists(contentDir) || !SpringPaths.IsDirectoryWritable(contentDir) || pickInitFolder || contentDir.Contains("Local\\Apps"))
                {
                    var dc = new SelectWritableFolder() { SelectedPath = SpringPaths.GetMySpringDocPath() };
                    if (dc.ShowDialog() != DialogResult.OK) return;
                    contentDir = dc.SelectedPath;
                }
                if (Conf.DataFolder != StartupPath) Conf.DataFolder = contentDir;
                else Conf.DataFolder = null;

                if (!SpringPaths.IsDirectoryWritable(StartupPath) || StartupPath.Contains("Local\\Apps"))
                {
                    MessageBox.Show(
                        string.Format(
                            "Please use the newly created desktop icon to start Zero-K not this one.\r\nZero-K.exe will be moved to {0}",
                            contentDir), "Startup directory is not writable!");
                    var newTarget = Path.Combine(contentDir, "Zero-K.exe");
                    if (SelfUpdater.CheckForUpdate(newTarget, true))
                    {
                        Conf.Save(Path.Combine(contentDir, Config.ConfigFileName));
                        Process.Start(newTarget);
                        return;
                    }
                    MessageBox.Show("Move failed, please copy Zero-K.exe to a writable folder");
                }




                SpringPaths = new SpringPaths(null, writableFolderOverride: contentDir);
                SpringPaths.MakeFolders();
                SpringPaths.SetEnginePath(Utils.MakePath(SpringPaths.WritableDirectory, "engine", ZkData.GlobalConst.DefaultEngineOverride ?? TasClient.ServerSpringVersion));

                // run unitsync as soon as possible so we don't have to spend several minutes doing it on game start
                // two problems:
                // 1) unitsync can only be loaded once, even if in a different directory http://msdn.microsoft.com/en-us/library/ms682586.aspx#factors_that_affect_searching
                //  so if we do it in SpringVersionChanged it'll be done at startup for GlobalConst.DefaultEngineOverride, then for no other engine version
                // 2) unitsync can't be unloaded http://stackoverflow.com/questions/1371877/how-to-unload-the-dll-using-c
                // also see EngineDownload.cs
                //SpringPaths.SpringVersionChanged += (s, e) =>
                //{
                //    //System.Diagnostics.Trace.TraceInformation("SpringPaths version: {0}", SpringPaths.SpringVersion);
                //    //new PlasmaShared.UnitSyncLib.UnitSync(SpringPaths);
                //    //SpringScanner.VerifyUnitSync();
                //    //if (SpringScanner != null) SpringScanner.Dispose();
                //    //SpringScanner = new SpringScanner(SpringPaths);
                //    //SpringScanner.Start();
                //};

                SaveConfig();
                if (Conf.CleanCache)
                {
                    try
                    {
                        var path = Program.SpringPaths.WritableDirectory;
                        bool backupChatlogs = false;
                        string sdPath = Utils.MakePath(path, "cache", "SD");
                        string chatHistoryPath = Utils.MakePath(sdPath, "ChatHistory");
                        string backupPath = Utils.MakePath(path, "_chatlogBackup");
                        // save chatlogs and such
                        if (Directory.Exists(chatHistoryPath))
                        {
                            if (Directory.Exists(backupPath))
                                Directory.Delete(backupPath, true);
                            Directory.Move(chatHistoryPath, backupPath);
                            backupChatlogs = true;
                        }
                        Directory.Delete(Utils.MakePath(path, "cache"), true);
                        if (backupChatlogs)
                        {
                            if (!Directory.Exists(sdPath))
                                Directory.CreateDirectory(sdPath);
                            Directory.Move(backupPath, chatHistoryPath);
                        }
                    }
                    catch (Exception ex)
                    {
                        Trace.TraceError(ex.ToString());
                    }
                    finally
                    {
                        Conf.CleanCache = false;
                        SaveConfig();
                    }
                }

                try
                {
                    if (!Debugger.IsAttached)
                    {
                        var wp = "";
                        foreach (var c in SpringPaths.WritableDirectory.Where(x => (x >= 'a' && x <= 'z') || (x >= 'A' && x <= 'Z'))) wp += c;
                        mutex = new Mutex(false, "ZeroKLobby" + wp);
                        if (!mutex.WaitOne(10000, false))
                        {
                            MessageBox.Show(
                                "Another copy of Zero-K launcher is still running" +
                                "\nMake sure the other launcher is closed (check task manager) before starting new one",
                                "There can be only one launcher running",
                                MessageBoxButtons.OK,
                                MessageBoxIcon.Stop);
                            return;
                        }
                    }
                }
                catch (AbandonedMutexException) { }

                if (Conf.IsFirstRun)
                {
                    DialogResult result = MessageBox.Show("Create a desktop icon for Zero-K?", "Zero-K", MessageBoxButtons.YesNo);
                    if (result == DialogResult.Yes) 
                    {
                        Utils.CreateDesktopShortcut();
                    }
                }

                FriendManager = new FriendManager();
                AutoJoinManager = new AutoJoinManager();
                EngineConfigurator = new EngineConfigurator(SpringPaths.WritableDirectory);

                SpringScanner = new SpringScanner(SpringPaths);
                SpringScanner.LocalResourceAdded += (s, e) => Trace.TraceInformation("New resource found: {0}", e.Item.InternalName);
                SpringScanner.LocalResourceRemoved += (s, e) => Trace.TraceInformation("Resource removed: {0}", e.Item.InternalName);
                if (Program.Conf.EnableUnitSyncPrompt && Environment.OSVersion.Platform != PlatformID.Unix)
                {
                    SpringScanner.UploadUnitsyncData += MicroForms.UnitSyncUploadPrompt.SpringScanner_UploadUnitsyncData;
                    SpringScanner.RetryResourceCheck += MicroForms.UnitSyncRetryPrompt.SpringScanner_RetryGetResourceInfo;
                }

                SpringScanner.MapRegistered += (s, e) => Trace.TraceInformation("Map registered: {0}", e.MapName);
                SpringScanner.ModRegistered += (s, e) => Trace.TraceInformation("Mod registered: {0}", e.Data.Name);

                Downloader = new PlasmaDownloader.PlasmaDownloader(Conf, SpringScanner, SpringPaths); //rapid
                Downloader.DownloadAdded += (s, e) => Trace.TraceInformation("Download started: {0}", e.Data.Name);

                var isLinux = Environment.OSVersion.Platform == PlatformID.Unix;
                TasClient = new TasClient(string.Format("ZK {0}{1}", SelfUpdater.CurrentVersion, isLinux ? " linux" : ""));

                SayCommandHandler = new SayCommandHandler(TasClient);

                ServerImages = new ServerImagesHandler(SpringPaths, TasClient);


                // log, for debugging
                TasClient.Connected += (s, e) => Trace.TraceInformation("TASC connected");
                TasClient.LoginAccepted += (s, e) => {
                    Trace.TraceInformation("TASC login accepted");
                    Trace.TraceInformation("Server is using Spring version {0}", TasClient.ServerSpringVersion);
                };

                TasClient.LoginDenied += (s, e) => Trace.TraceInformation("TASC login denied");
                TasClient.ChannelJoined += (s, e) => { Trace.TraceInformation("TASC channel joined: " + e.Name); };
                TasClient.ConnectionLost += (s, e) => Trace.TraceInformation("Connection lost");

                // special handling
                TasClient.PreviewSaid += (s, e) =>
                {
                    var tas = (TasClient)s;
                    User user = null;
                    if (e.Data.UserName != null)
                    {
                        tas.ExistingUsers.TryGetValue(e.Data.UserName, out user);
                        if ((user != null && user.BanMute) || Conf.IgnoredUsers.Contains(e.Data.UserName)) e.Cancel = true;
                    }
                };

                TasClient.Extensions.JsonDataReceived += (eventArgs, o) =>
                    {
                        var command = o as ProtocolExtension.SiteToLobbyCommand;
                        if (command != null)
                        {
                            MainWindow.navigationControl.Path = command.SpringLink;
                            MainWindow.PopupSelf();
                        }
                    };

                ModStore = new ModStore();
                ToolTip = new ToolTipHandler();
                BrowserInterop = new BrowserInterop();
                BattleIconManager = new BattleIconManager();

                Application.AddMessageFilter(ToolTip);


                SteamHandler = new ZklSteamHandler(TasClient);
                SteamHandler.Connect();


                MainWindow = new MainWindow();

                Application.AddMessageFilter(new ScrollMessageFilter());

                BattleBar = new BattleBar();
                NewVersionBar = new NewVersionBar(SelfUpdater);
                VoteBar = new VoteBar();
                PwBar = new PwBar();

                if (!Debugger.IsAttached && !Conf.DisableAutoUpdate) Program.SelfUpdater.StartChecking();

                Application.Run(MainWindow);
                ShutDown();
            }
            catch (Exception ex)
            {
                ErrorHandling.HandleException(ex, true);
            }
            finally
            {
                ShutDown();
            }
            if (ErrorHandling.HasFatalException && !Program.CloseOnNext) Application.Restart();
        }
        public async Task<bool> Run()
        {
            try
            {
                var downloader = new PlasmaDownloader.PlasmaDownloader(new SpringScanner(paths) { WatchingEnabled = false, UseUnitSync = false },
                     paths);

                PackageDownloader.Version ver = null;
                string internalName = null;

                if (!isDev)
                {
                    if (!Debugger.IsAttached)
                    {
                        Status = "Checking for self-upgrade";
                        var selfUpdater = new SelfUpdater();
                        selfUpdater.ProgramUpdated += delegate { Application.Restart(); };
                        var task = new Task<bool>(() => selfUpdater.CheckForUpdate());
                        task.Start();
                        await task;
                    }


                    Status = "Updating rapid packages";
                    await downloader.PackageDownloader.LoadMasterAndVersions();
                    Status = "Checking for chobby update";
                    Download = downloader.GetResource(DownloadType.MOD, chobbyTag);
                    var asTask = Download?.WaitHandle.AsTask(TimeSpan.FromMinutes(20));
                    if (asTask != null) await asTask;
                    if (Download?.IsComplete == false)
                    {
                        Status = $"Download of {Download.Name} has failed";
                        return false;
                    }

                    ver = downloader.PackageDownloader.GetByTag(chobbyTag);
                    if (ver == null)
                    {
                        Status = "Rapid package appears to be corrupted, please clear the folder";
                        return false;
                    }

                    internalName = ver.InternalName;
                }
                else internalName = "Chobby $VERSION";


                engine = engine ?? QueryDefaultEngine() ?? ExtractEngineFromLua(ver) ?? GlobalConst.DefaultEngineOverride;


                Status = "Downloading engine";
                Download = downloader.GetResource(DownloadType.ENGINE, engine);
                var engDlTask = Download?.WaitHandle.AsTask(TimeSpan.FromMinutes(20));
                if (engDlTask != null) await engDlTask;
                if (Download?.IsComplete == false)
                {
                    Status = $"Download of engine {Download.Name} has failed";
                    return false;
                }

                if (!isDev)
                {
                    Status = "Extracting default configs";
                    ExtractDefaultConfigs(paths, ver);
                }
                
                Status = "Starting";
                
                

                LaunchChobby(paths, internalName, engine);
                return true;
            }
            catch (Exception ex)
            {
                Trace.TraceError("Unexpected error: {0}", ex);
                Status = "Unexpected error preparing chobby launch: " + ex.Message;
                return false;
            }
        }
        public static void Main(string[] args) {
            try
            {
                //Stopwatch stopWatch = new Stopwatch(); stopWatch.Start();
                Trace.Listeners.Add(new ConsoleTraceListener());

                try
                {
                    Application.SetCompatibleTextRenderingDefault(false);
                }
                catch (Exception ex)
                {
                    Trace.TraceWarning("Failed to set rendering compatibility: {0}",ex);
                }




                if (Environment.OSVersion.Platform != PlatformID.Unix)
                {
                    var ver = GetNetVersionFromRegistry();
                    if (ver < 378675)
                    {
                        MessageBox.Show(new Form { TopMost = true },
                            "Zero-K launcher needs Microsoft .NET framework 4.5.1\nPlease download and install it first",
                            "Program is unable to run",
                            MessageBoxButtons.OK,
                            MessageBoxIcon.Error);
                    }
                }

                Directory.SetCurrentDirectory(StartupPath);

                // extract fonts
                EmbeddedResourceExtractor.ExtractFile("ZeroKLobby.NativeLibs.SM.ttf", "SM.ttf");
                EmbeddedResourceExtractor.ExtractFile("ZeroKLobby.NativeLibs.OpenSans-Regular.ttf", "OpenSans-Regular.ttf");

                Conf = new Config();

                IsSteamFolder = File.Exists(Path.Combine(StartupPath, "steamfolder.txt"));

                SelfUpdater = new SelfUpdater("Zero-K");

                StartupArgs = args;

                Application.EnableVisualStyles();

                if (!Debugger.IsAttached)
                {
                    AppDomain.CurrentDomain.UnhandledException += CurrentDomain_UnhandledException;
                    Thread.GetDomain().UnhandledException += UnhandledException;
                    Application.ThreadException += Application_ThreadException;
                    Application.SetUnhandledExceptionMode(UnhandledExceptionMode.CatchException);
                }

                //HttpWebRequest.DefaultCachePolicy = new RequestCachePolicy(RequestCacheLevel.NoCacheNoStore);
                Trace.TraceInformation("Starting with version {0}", SelfUpdater.CurrentVersion);

                WebRequest.DefaultWebProxy = null;
                ThreadPool.SetMaxThreads(500, 2000);
                ServicePointManager.Expect100Continue = false;
                LoadConfig();
                Trace.Listeners.Add(new LogTraceListener());
                if (Environment.OSVersion.Platform != PlatformID.Unix && !Conf.UseExternalBrowser) Utils.SetIeCompatibility(); //set to current IE version

                var contentDir = !string.IsNullOrEmpty(Conf.DataFolder) ? Conf.DataFolder : StartupPath;
                if (!Directory.Exists(contentDir) || !SpringPaths.IsDirectoryWritable(contentDir))
                {
                    var dc = new SelectWritableFolder { SelectedPath = SpringPaths.GetMySpringDocPath() };
                    if (dc.ShowDialog() != DialogResult.OK) return;
                    contentDir = dc.SelectedPath;
                }
                if (Conf.DataFolder != StartupPath) Conf.DataFolder = contentDir;
                else Conf.DataFolder = null;

                if (!SpringPaths.IsDirectoryWritable(StartupPath))
                {
                    var newTarget = Path.Combine(contentDir, "Zero-K.exe");
                    if (SelfUpdater.CheckForUpdate(newTarget, true))
                    {
                        Conf.Save(Path.Combine(contentDir, Config.ConfigFileName));
                        Process.Start(newTarget);
                        return;
                    } MessageBox.Show(new Form { TopMost = true }, "Move failed, please copy Zero-K.exe to a writable folder");
                    return;
                }

                

                SpringPaths = new SpringPaths(null, contentDir);
                SpringPaths.MakeFolders();

                // speed up spring start
                SpringPaths.SpringVersionChanged += (sender, eventArgs) =>
                {
                    ZkData.Utils.StartAsync(
                        () =>
                        {
                            UnitSync unitSync = null;
                            try
                            {
                                unitSync = new UnitSync(SpringPaths); // initialize unitsync to avoid slowdowns when starting

                                if (unitSync.UnitsyncWritableFolder != SpringPaths.WritableDirectory)
                                {
                                    // unitsync created its cache in different folder than is used to start spring -> move it
                                    var fi = ArchiveCache.GetCacheFile(unitSync.UnitsyncWritableFolder);
                                    if (fi != null) File.Copy(fi.FullName, Path.Combine(SpringPaths.WritableDirectory, "cache", fi.Name), true);
                                }
                            }
                            finally
                            {
                                unitSync?.Dispose();
                            }
                        });
                };

                SaveConfig();


                // write license files
                try
                {
                    var path = SpringPaths.WritableDirectory;
                    var pathGPL = Utils.MakePath(path, "license_GPLv3");
                    var gpl = Encoding.UTF8.GetString(License.GPLv3);
                    if (!File.Exists(pathGPL)) File.WriteAllText(pathGPL, gpl);
                    var pathMIT = Utils.MakePath(path, "license_MIT");
                    var mit = Encoding.UTF8.GetString(License.MITlicense);
                    if (!File.Exists(pathMIT)) File.WriteAllText(pathMIT, mit);
                }
                catch (Exception ex)
                {
                    Trace.TraceError(ex.ToString());
                }


                
                if (Conf.IsFirstRun)
                {
                    if (!IsSteamFolder)
                    {
                        Utils.CreateDesktopShortcut();
                    }
                    if (Environment.OSVersion.Platform != PlatformID.Unix) Utils.RegisterProtocol();
                }

                FriendManager = new FriendManager();
                AutoJoinManager = new AutoJoinManager();
                EngineConfigurator = new EngineConfigurator(SpringPaths.WritableDirectory);

                SpringScanner = new SpringScanner(SpringPaths);
                SpringScanner.LocalResourceAdded += (s, e) => Trace.TraceInformation("New resource found: {0}", e.Item.InternalName);
                SpringScanner.LocalResourceRemoved += (s, e) => Trace.TraceInformation("Resource removed: {0}", e.Item.InternalName);
                if (Conf.EnableUnitSyncPrompt && Environment.OSVersion.Platform != PlatformID.Unix)
                {
                    SpringScanner.UploadUnitsyncData += UnitSyncUploadPrompt.SpringScanner_UploadUnitsyncData;
                    SpringScanner.RetryResourceCheck += UnitSyncRetryPrompt.SpringScanner_RetryGetResourceInfo;
                }

                SpringScanner.MapRegistered += (s, e) => Trace.TraceInformation("Map registered: {0}", e.MapName);
                SpringScanner.ModRegistered += (s, e) => Trace.TraceInformation("Mod registered: {0}", e.Data.Name);

                Downloader = new PlasmaDownloader.PlasmaDownloader(SpringScanner, SpringPaths); //rapid
                Downloader.DownloadAdded += (s, e) => Trace.TraceInformation("Download started: {0}", e.Data.Name);
                Downloader.GetAndSwitchEngine(GlobalConst.DefaultEngineOverride ?? TasClient.ServerSpringVersion);

                var isLinux = Environment.OSVersion.Platform == PlatformID.Unix;
                TasClient = new TasClient(string.Format("ZK {0}{1}", SelfUpdater.CurrentVersion, isLinux ? " linux" : ""));

                SayCommandHandler = new SayCommandHandler(TasClient);

                ServerImages = new ServerImagesHandler(SpringPaths, TasClient);


                // log, for debugging
                TasClient.Connected += (s, e) => Trace.TraceInformation("TASC connected");
                TasClient.LoginAccepted += (s, e) =>
                {
                    Trace.TraceInformation("TASC login accepted");
                    Trace.TraceInformation("Server is using Spring version {0}", TasClient.ServerSpringVersion);
                    if (Environment.OSVersion.Platform == PlatformID.Unix || Conf.UseExternalBrowser) if (MainWindow != null) MainWindow.navigationControl.Path = "battles";
                };

                TasClient.LoginDenied += (s, e) => Trace.TraceInformation("TASC login denied");
                TasClient.ChannelJoined += (s, e) => { Trace.TraceInformation("TASC channel joined: " + e.Name); };
                TasClient.ConnectionLost += (s, e) => Trace.TraceInformation("Connection lost");

                // special handling
                TasClient.PreviewSaid += (s, e) =>
                {
                    var tas = (TasClient)s;
                    User user = null;
                    if (e.Data.UserName != null)
                    {
                        tas.ExistingUsers.TryGetValue(e.Data.UserName, out user);
                        if ((user != null && user.BanMute) || Conf.IgnoredUsers.Contains(e.Data.UserName)) e.Cancel = true;
                    }
                };

                TasClient.SiteToLobbyCommandReceived += (eventArgs, o) =>
                {
                    if (MainWindow != null)
                    {
                        MainWindow.navigationControl.Path = o.Command;
                        MainWindow.PopupSelf();
                    }
                };

                ModStore = new ModStore();

                ConnectBar = new ConnectBar(TasClient);
                ToolTip = new ToolTipHandler();
                BrowserInterop = new BrowserInterop(TasClient, Conf);
                BattleIconManager = new BattleIconManager();
                Application.AddMessageFilter(ToolTip);

                SteamHandler = new ZklSteamHandler(TasClient);

                MainWindow = new MainWindow();

                Application.AddMessageFilter(new ScrollMessageFilter());

                MainWindow.Size = new Size(
                    Math.Min(SystemInformation.VirtualScreen.Width - 30, MainWindow.Width),
                    Math.Min(SystemInformation.VirtualScreen.Height - 30, MainWindow.Height)); //in case user have less space than 1024x768

                BattleBar = new BattleBar();
                VoteBar = new VoteBar();
                PwBar = new PwBar();

           
                if (!Debugger.IsAttached && !Conf.DisableAutoUpdate && !IsSteamFolder) SelfUpdater.StartChecking();

                SteamHandler.Connect();
                Application.Run(MainWindow);

                ShutDown();
            }
            catch (Exception ex)
            {
                ErrorHandling.HandleException(ex, true);
                if (Debugger.IsAttached) Debugger.Break();
            }
            finally
            {
                ShutDown();
            }
            if (ErrorHandling.HasFatalException && !CloseOnNext)
            {
                if (Debugger.IsAttached) Debugger.Break();
                Application.Restart();
            }
        }
        public async Task<bool> Prepare()
        {
            try
            {
                PackageDownloader.Version ver = null;
                internalName = null;

                if (!isDev)
                {
                    if (!Debugger.IsAttached)
                    {
                        Status = "Checking for self-upgrade";
                        var selfUpdater = new SelfUpdater();
                        selfUpdater.ProgramUpdated += delegate
                        {
                            if (Environment.OSVersion.Platform == PlatformID.Unix)
                            {
                                Process.Start(Application.ExecutablePath);
                                Environment.Exit(0);
                            } else Application.Restart();
                        };
                        var task = new Task<bool>(() => selfUpdater.CheckForUpdate());
                        task.Start();
                        await task;
                    }
                    
                    if (!await DownloadFile("Checking for chobby update", DownloadType.RAPID, chobbyTag)) return false;
                    if (!await DownloadFile("Checking for game update", DownloadType.RAPID, "zk:stable")) return false;
                    
                    ver = downloader.PackageDownloader.GetByTag(chobbyTag);
                    if (ver == null)
                    {
                        Status = "Rapid package appears to be corrupted, please clear the folder";
                        return false;
                    }

                    internalName = ver.InternalName;
                }
                else internalName = "Chobby $VERSION";


                engine = engine ?? QueryDefaultEngine() ?? ExtractEngineFromLua(ver) ?? GlobalConst.DefaultEngineOverride;

                if (!await DownloadFile("Downloading engine", DownloadType.ENGINE, engine)) return false;

                if (!await UpdateMissions())
                {
                    Trace.TraceWarning("Mission update has failed");
                    Status = "Error updating missions";
                }


                if (!isDev)
                {
                    Status = "Reseting configs";
                    ConfigVersions.ResetConfigs(paths, ver);

                    Status = "Extracting default configs";
                    ExtractDefaultConfigs(paths, ver);
                }
                
                Status = "Starting";

                var chobyl = new ChobbylaLocalListener(this);
                loopbackPort = chobyl.StartListening();
                
                return true;
            }
            catch (Exception ex)
            {
                Trace.TraceError("Unexpected error: {0}", ex);
                Status = "Unexpected error preparing chobby launch: " + ex.Message;
                return false;
            }
        }