Fixed issue with PPC WIFI connection profiles.

Implemented OS restart after first setup.
Prevented PPC updater crashes without restarting PPC.
Implemented restarting system view on PPC.

17 files changed, 237 insertions, 42 deletions

diff --git a/Software/Visual_Studio/PPC/Tango.PPC.Common/Application/IPPCApplicationManager.cs b/Software/Visual_Studio/PPC/Tango.PPC.Common/Application/IPPCApplicationManager.cs
index 5f0b35ce2..f07ba39a9 100644
--- a/Software/Visual_Studio/PPC/Tango.PPC.Common/Application/IPPCApplicationManager.cs
+++ b/Software/Visual_Studio/PPC/Tango.PPC.Common/Application/IPPCApplicationManager.cs
@@ -41,6 +41,11 @@ namespace Tango.PPC.Common.Application
         event EventHandler SetupRequired;
 
         /// <summary>
+        /// Occurs when a system restart is required.
+        /// </summary>
+        event EventHandler SystemRestartRequired;
+
+        /// <summary>
         /// Occurs when the application has encountered an error when initializing.
         /// </summary>
         event EventHandler<Exception> ApplicationInitializationError;
diff --git a/Software/Visual_Studio/PPC/Tango.PPC.Common/Connectivity/WiFiNetwork.cs b/Software/Visual_Studio/PPC/Tango.PPC.Common/Connectivity/WiFiNetwork.cs
index 766e25e40..46a1e2355 100644
--- a/Software/Visual_Studio/PPC/Tango.PPC.Common/Connectivity/WiFiNetwork.cs
+++ b/Software/Visual_Studio/PPC/Tango.PPC.Common/Connectivity/WiFiNetwork.cs
@@ -86,14 +86,14 @@ namespace Tango.PPC.Common.Connectivity
             return new WiFiAuthentication(new AuthRequest(AccessPoint));
         }
 
-        public Task<bool> Connect(WiFiAuthentication request)
+        public Task<bool> Connect(WiFiAuthentication request, bool overwriteProfile)
         {
             return Task.Factory.StartNew<bool>(() =>
             {
                 try
                 {
                     Connecting = true;
-                    return AccessPoint.Connect(request.AuthRequest, false);
+                    return AccessPoint.Connect(request.AuthRequest, overwriteProfile);
                 }
                 catch (Exception)
                 {
@@ -126,5 +126,20 @@ namespace Tango.PPC.Common.Connectivity
                 }
             });
         }
+
+        public Task Forget()
+        {
+            return Task.Factory.StartNew(() =>
+            {
+                try
+                {
+                    AccessPoint.DeleteProfile();
+                }
+                catch
+                {
+                    
+                }
+            });
+        }
     }
 }
diff --git a/Software/Visual_Studio/PPC/Tango.PPC.Common/Navigation/NavigationView.cs b/Software/Visual_Studio/PPC/Tango.PPC.Common/Navigation/NavigationView.cs
index ac02422c0..e3129b970 100644
--- a/Software/Visual_Studio/PPC/Tango.PPC.Common/Navigation/NavigationView.cs
+++ b/Software/Visual_Studio/PPC/Tango.PPC.Common/Navigation/NavigationView.cs
@@ -21,5 +21,6 @@ namespace Tango.PPC.Common.Navigation
         ExternalBridgeView,
         HomeModule,
         ShutdownView,
+        RestartingSystemView
     }
 }
diff --git a/Software/Visual_Studio/PPC/Tango.PPC.Common/OS/DefaultOperationSystemManager.cs b/Software/Visual_Studio/PPC/Tango.PPC.Common/OS/DefaultOperationSystemManager.cs
index a073c1c5e..75e8d40dc 100644
--- a/Software/Visual_Studio/PPC/Tango.PPC.Common/OS/DefaultOperationSystemManager.cs
+++ b/Software/Visual_Studio/PPC/Tango.PPC.Common/OS/DefaultOperationSystemManager.cs
@@ -10,6 +10,7 @@ using Tango.PPC.Common.Scripting;
 namespace Tango.PPC.Common.OS
 {
     using System.Collections.ObjectModel;
+    using System.Diagnostics;
     using Tango.Core;
     using SLID = Guid; //SLID id declaration as typedef GUID SLID; in slpublic.h 
 
@@ -124,5 +125,14 @@ namespace Tango.PPC.Common.OS
             CmdCommand cmd = new CmdCommand("tzutil", $"/s \"{timeZone.Id}\"");
             await cmd.Run();
         }
+
+        /// <summary>
+        /// Restarts the system.
+        /// </summary>
+        /// <returns></returns>
+        public void Restart()
+        {
+            Process.Start("shutdown.exe", "-r -t 0");
+        }
     }
 }
diff --git a/Software/Visual_Studio/PPC/Tango.PPC.Common/OS/IOperationSystemManager.cs b/Software/Visual_Studio/PPC/Tango.PPC.Common/OS/IOperationSystemManager.cs
index d7898d174..0cdf85927 100644
--- a/Software/Visual_Studio/PPC/Tango.PPC.Common/OS/IOperationSystemManager.cs
+++ b/Software/Visual_Studio/PPC/Tango.PPC.Common/OS/IOperationSystemManager.cs
@@ -43,5 +43,11 @@ namespace Tango.PPC.Common.OS
         /// <param name="timeZone">The time zone.</param>
         /// <returns></returns>
         Task ChangeTimeZone(TimeZoneInfo timeZone);
+
+        /// <summary>
+        /// Restarts the system.
+        /// </summary>
+        /// <returns></returns>
+        void Restart();
     }
 }
diff --git a/Software/Visual_Studio/PPC/Tango.PPC.Common/Resources/Merged.xaml b/Software/Visual_Studio/PPC/Tango.PPC.Common/Resources/Merged.xaml
index 266bef3eb..05cd998e6 100644
--- a/Software/Visual_Studio/PPC/Tango.PPC.Common/Resources/Merged.xaml
+++ b/Software/Visual_Studio/PPC/Tango.PPC.Common/Resources/Merged.xaml
@@ -43,6 +43,7 @@
     <converters:GreaterThanToBooleanConverter x:Key="GreaterThanToBooleanConverter" />
     <converters:ByteArrayToFileSizeConverter x:Key="ByteArrayToFileSizeConverter" />
     <converters:EnumToVisibilityConverter x:Key="EnumToVisibilityConverter" />
+    <converters:EnumToBooleanConverter x:Key="EnumToBooleanConverter" />
     <converters:DateTimeUTCToStringConverter x:Key="DateTimeUTCToStringConverter" />
     <converters:NullObjectToBooleanConverter x:Key="NullObjectToBooleanConverter" />
     <converters:IsNullToVisibilityConverter x:Key="IsNullToVisibilityConverter" />
diff --git a/Software/Visual_Studio/PPC/Tango.PPC.UI/Connectivity/DefaultConnectivityProvider.cs b/Software/Visual_Studio/PPC/Tango.PPC.UI/Connectivity/DefaultConnectivityProvider.cs
index a05e66f10..5fc7f00df 100644
--- a/Software/Visual_Studio/PPC/Tango.PPC.UI/Connectivity/DefaultConnectivityProvider.cs
+++ b/Software/Visual_Studio/PPC/Tango.PPC.UI/Connectivity/DefaultConnectivityProvider.cs
@@ -224,7 +224,14 @@ namespace Tango.PPC.UI.Connectivity
 
                 if (vm.DialogResult)
                 {
-                    result = await network.Connect(auth);
+                    result = await network.Connect(auth, true);
+
+                    if (!result)
+                    {
+                        await _notification.ShowError("Could not connect to the specified network. Please check your password.");
+                        await network.Forget();
+                    }
+
                     await RefreshAvailableWiFiNetworks();
                 }
                 else
@@ -234,7 +241,7 @@ namespace Tango.PPC.UI.Connectivity
             }
             else
             {
-                result = await network.Connect(auth);
+                result = await network.Connect(auth, false);
                 await RefreshAvailableWiFiNetworks();
             }
 
diff --git a/Software/Visual_Studio/PPC/Tango.PPC.UI/PPCApplication/DefaultPPCApplicationManager.cs b/Software/Visual_Studio/PPC/Tango.PPC.UI/PPCApplication/DefaultPPCApplicationManager.cs
index 2929908cc..39ce8cd30 100644
--- a/Software/Visual_Studio/PPC/Tango.PPC.UI/PPCApplication/DefaultPPCApplicationManager.cs
+++ b/Software/Visual_Studio/PPC/Tango.PPC.UI/PPCApplication/DefaultPPCApplicationManager.cs
@@ -46,6 +46,11 @@ namespace Tango.PPC.UI.PPCApplication
         private INotificationProvider _notificationProvider;
 
         /// <summary>
+        /// Occurs when a system restart is required.
+        /// </summary>
+        public event EventHandler SystemRestartRequired;
+
+        /// <summary>
         /// Occurs when the application has started.
         /// </summary>
         public event EventHandler ApplicationStarted;
@@ -141,6 +146,7 @@ namespace Tango.PPC.UI.PPCApplication
             PPCSettings settings = null;
 
             bool initialized = false;
+            bool isAfterSetup = false;
 
             await Task.Factory.StartNew(() =>
             {
@@ -163,8 +169,21 @@ namespace Tango.PPC.UI.PPCApplication
                     if (App.StartupArgs.Contains("-update_ok"))
                     {
                         LogManager.Log("Application started with '-update_ok' startup arguments. The application has been successfully updated.");
+
+                        if (settings.ApplicationState == ApplicationStates.PreSetup)
+                        {
+                            isAfterSetup = true;
+                            LogManager.Log("System restart is required.");
+                        }
+
                         settings.ApplicationState = ApplicationStates.Ready;
                         settings.Save();
+
+                        if (isAfterSetup)
+                        {
+                            SystemRestartRequired?.Invoke(this, new EventArgs());
+                            return;
+                        }
                     }
 
                     if (settings.ApplicationState == ApplicationStates.Ready)
diff --git a/Software/Visual_Studio/PPC/Tango.PPC.UI/Tango.PPC.UI.csproj b/Software/Visual_Studio/PPC/Tango.PPC.UI/Tango.PPC.UI.csproj
index 17598c085..f40bfa7de 100644
--- a/Software/Visual_Studio/PPC/Tango.PPC.UI/Tango.PPC.UI.csproj
+++ b/Software/Visual_Studio/PPC/Tango.PPC.UI/Tango.PPC.UI.csproj
@@ -144,6 +144,7 @@
     <Compile Include="ViewModels\MainViewVM.cs" />
     <Compile Include="ViewModels\MachineUpdateViewVM.cs" />
     <Compile Include="ViewModels\NoPermissionsViewVM.cs" />
+    <Compile Include="ViewModels\RestartingSystemViewVM.cs" />
     <Compile Include="ViewsContracts\ILayoutView.cs" />
     <Compile Include="ViewsContracts\IMachineSetupView.cs" />
     <Compile Include="ViewsContracts\IMachineUpdateView.cs" />
@@ -174,6 +175,9 @@
     <Compile Include="Views\NoPermissionsView.xaml.cs">
       <DependentUpon>NoPermissionsView.xaml</DependentUpon>
     </Compile>
+    <Compile Include="Views\RestartingSystemView.xaml.cs">
+      <DependentUpon>RestartingSystemView.xaml</DependentUpon>
+    </Compile>
     <Page Include="Connectivity\WiFiAuthenticationView.xaml">
       <SubType>Designer</SubType>
       <Generator>MSBuild:Compile</Generator>
@@ -242,6 +246,10 @@
       <SubType>Designer</SubType>
       <Generator>MSBuild:Compile</Generator>
     </Page>
+    <Page Include="Views\RestartingSystemView.xaml">
+      <SubType>Designer</SubType>
+      <Generator>MSBuild:Compile</Generator>
+    </Page>
   </ItemGroup>
   <ItemGroup>
     <Compile Include="Properties\AssemblyInfo.cs">
diff --git a/Software/Visual_Studio/PPC/Tango.PPC.UI/ViewModelLocator.cs b/Software/Visual_Studio/PPC/Tango.PPC.UI/ViewModelLocator.cs
index 444fd70b9..4eb5475f0 100644
--- a/Software/Visual_Studio/PPC/Tango.PPC.UI/ViewModelLocator.cs
+++ b/Software/Visual_Studio/PPC/Tango.PPC.UI/ViewModelLocator.cs
@@ -102,6 +102,7 @@ namespace Tango.PPC.UI
             TangoIOC.Default.Register<MachineUpdateViewVM>();
             TangoIOC.Default.Register<LoadingErrorViewVM>();
             TangoIOC.Default.Register<NoPermissionsViewVM>();
+            TangoIOC.Default.Register<RestartingSystemViewVM>();
 
 
             TangoIOC.Default.GetInstance<IPPCApplicationManager>().ContentRendered += (_, __) =>
@@ -191,5 +192,13 @@ namespace Tango.PPC.UI
                 return TangoIOC.Default.GetInstance<NoPermissionsViewVM>();
             }
         }
+
+        public static RestartingSystemViewVM RestartingSystemViewVM
+        {
+            get
+            {
+                return TangoIOC.Default.GetInstance<RestartingSystemViewVM>();
+            }
+        }
     }
 }
\ No newline at end of file
diff --git a/Software/Visual_Studio/PPC/Tango.PPC.UI/ViewModels/RestartingSystemViewVM.cs b/Software/Visual_Studio/PPC/Tango.PPC.UI/ViewModels/RestartingSystemViewVM.cs
new file mode 100644
index 000000000..b1cb57fce
--- /dev/null
+++ b/Software/Visual_Studio/PPC/Tango.PPC.UI/ViewModels/RestartingSystemViewVM.cs
@@ -0,0 +1,45 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using Tango.PPC.Common;
+using Tango.PPC.Common.Application;
+using Tango.PPC.Common.Navigation;
+using Tango.PPC.Common.OS;
+
+namespace Tango.PPC.UI.ViewModels
+{
+    public class RestartingSystemViewVM : PPCViewModel
+    {
+        private IOperationSystemManager _os;
+        private INavigationManager _navigationManager;
+
+        public RestartingSystemViewVM(IPPCApplicationManager applicationManager, IOperationSystemManager operationSystemManager, INavigationManager navigationManager)
+        {
+            _navigationManager = navigationManager;
+            _os = operationSystemManager;
+            applicationManager.SystemRestartRequired += ApplicationManager_SystemRestartRequired;
+        }
+
+        private void ApplicationManager_SystemRestartRequired(object sender, EventArgs e)
+        {
+            InvokeUI(() =>
+            {
+                _navigationManager.NavigateTo(NavigationView.RestartingSystemView);
+            });
+        }
+
+        public async override void OnNavigatedTo()
+        {
+            base.OnNavigatedTo();
+            await Task.Delay(2000);
+            _os.Restart();
+        }
+
+        public override void OnApplicationStarted()
+        {
+
+        }
+    }
+}
diff --git a/Software/Visual_Studio/PPC/Tango.PPC.UI/Views/MachineSetupView.xaml b/Software/Visual_Studio/PPC/Tango.PPC.UI/Views/MachineSetupView.xaml
index 30b99dbbf..9437caac9 100644
--- a/Software/Visual_Studio/PPC/Tango.PPC.UI/Views/MachineSetupView.xaml
+++ b/Software/Visual_Studio/PPC/Tango.PPC.UI/Views/MachineSetupView.xaml
@@ -65,7 +65,7 @@
                             <TextBlock DockPanel.Dock="Top" Margin="20 0" FontSize="{StaticResource TangoTitleFontSize}" HorizontalAlignment="Center"  TextWrapping="Wrap" TextAlignment="Center">
                                 Checking internet connection, please wait...
                             </TextBlock>
-                            <touch:TouchBusyIndicator Width="250" Margin="0 100 0 0" Height="250" IsIndeterminate="{Binding CurrentView,Converter={StaticResource EnumToVisibilityConverter},ConverterParameter='WiFiTestView'}" />
+                            <touch:TouchBusyIndicator Width="250" Margin="0 100 0 0" Height="250" IsIndeterminate="{Binding CurrentView,Converter={StaticResource EnumToBooleanConverter},ConverterParameter='WiFiTestView'}" />
                         </StackPanel>
                     </Grid>
 
diff --git a/Software/Visual_Studio/PPC/Tango.PPC.UI/Views/MainView.xaml b/Software/Visual_Studio/PPC/Tango.PPC.UI/Views/MainView.xaml
index 6d1bde59d..c6e3fa6ea 100644
--- a/Software/Visual_Studio/PPC/Tango.PPC.UI/Views/MainView.xaml
+++ b/Software/Visual_Studio/PPC/Tango.PPC.UI/Views/MainView.xaml
@@ -89,6 +89,7 @@
                 <local:ExternalBridgeView></local:ExternalBridgeView>
                 <local:MachineSetupView></local:MachineSetupView>
                 <local:MachineUpdateView></local:MachineUpdateView>
+                <local:RestartingSystemView></local:RestartingSystemView>
             </controls:NavigationControl>
         </touch:TouchPanel>
     </Grid>
diff --git a/Software/Visual_Studio/PPC/Tango.PPC.UI/Views/RestartingSystemView.xaml b/Software/Visual_Studio/PPC/Tango.PPC.UI/Views/RestartingSystemView.xaml
new file mode 100644
index 000000000..996b1788d
--- /dev/null
+++ b/Software/Visual_Studio/PPC/Tango.PPC.UI/Views/RestartingSystemView.xaml
@@ -0,0 +1,27 @@
+<UserControl x:Class="Tango.PPC.UI.Views.RestartingSystemView"
+             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             xmlns:global="clr-namespace:Tango.PPC.UI"
+             xmlns:vm="clr-namespace:Tango.PPC.UI.ViewModels"
+             xmlns:touch="clr-namespace:Tango.Touch.Controls;assembly=Tango.Touch"
+             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
+             xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 
+             xmlns:local="clr-namespace:Tango.PPC.UI.Views"
+             mc:Ignorable="d" 
+             d:DesignHeight="1280" d:DesignWidth="800" d:DataContext="{d:DesignInstance Type=vm:RestartingSystemViewVM, IsDesignTimeCreatable=False}" DataContext="{x:Static global:ViewModelLocator.RestartingSystemViewVM}" Background="{StaticResource TangoPrimaryBackgroundBrush}">
+    <Grid>
+
+        <StackPanel HorizontalAlignment="Center" VerticalAlignment="Center">
+            <touch:TouchBusyIndicator Width="350" Height="350" IsIndeterminate="{Binding IsVisible}" Foreground="{StaticResource TangoGrayBrush}" />
+            <TextBlock Margin="0 40 0 0" TextAlignment="Center" HorizontalAlignment="Center" FontSize="{StaticResource TangoTitleFontSize}" Foreground="{StaticResource TangoGrayTextBrush}">
+                <Run>
+                    Setup completed.
+                </Run>
+                <LineBreak/>
+                <Run>
+                    Restarting the system for the last time...
+                </Run>                
+            </TextBlock>
+        </StackPanel>
+    </Grid>
+</UserControl>
diff --git a/Software/Visual_Studio/PPC/Tango.PPC.UI/Views/RestartingSystemView.xaml.cs b/Software/Visual_Studio/PPC/Tango.PPC.UI/Views/RestartingSystemView.xaml.cs
new file mode 100644
index 000000000..1b426192e
--- /dev/null
+++ b/Software/Visual_Studio/PPC/Tango.PPC.UI/Views/RestartingSystemView.xaml.cs
@@ -0,0 +1,28 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows;
+using System.Windows.Controls;
+using System.Windows.Data;
+using System.Windows.Documents;
+using System.Windows.Input;
+using System.Windows.Media;
+using System.Windows.Media.Imaging;
+using System.Windows.Navigation;
+using System.Windows.Shapes;
+
+namespace Tango.PPC.UI.Views
+{
+    /// <summary>
+    /// Interaction logic for RestartingSystemView.xaml
+    /// </summary>
+    public partial class RestartingSystemView : UserControl
+    {
+        public RestartingSystemView()
+        {
+            InitializeComponent();
+        }
+    }
+}
diff --git a/Software/Visual_Studio/PPC/Tango.PPC.UI/app.manifest b/Software/Visual_Studio/PPC/Tango.PPC.UI/app.manifest
index d72e75011..efc5f8179 100644
--- a/Software/Visual_Studio/PPC/Tango.PPC.UI/app.manifest
+++ b/Software/Visual_Studio/PPC/Tango.PPC.UI/app.manifest
@@ -16,7 +16,7 @@
             Remove this element if your application requires this virtualization for backwards
             compatibility.
         -->
-        <requestedExecutionLevel level="requireAdministrator" uiAccess="false" />
+        <!--<requestedExecutionLevel level="requireAdministrator" uiAccess="false" />-->
       </requestedPrivileges>
     </security>
   </trustInfo>
diff --git a/Software/Visual_Studio/PPC/Tango.PPC.Updater/MainWindow.xaml.cs b/Software/Visual_Studio/PPC/Tango.PPC.Updater/MainWindow.xaml.cs
index eb8d61a6b..ae4f22420 100644
--- a/Software/Visual_Studio/PPC/Tango.PPC.Updater/MainWindow.xaml.cs
+++ b/Software/Visual_Studio/PPC/Tango.PPC.Updater/MainWindow.xaml.cs
@@ -25,23 +25,17 @@ namespace Tango.PPC.Updater
     {
         private String _sourceFolder = AppDomain.CurrentDomain.BaseDirectory;
         private String _msProcessName = "Tango.PPC.UI";
-        private String _appPath = String.Join(" ", App.StartupArgs);
+        private String _appPath;
 
         public MainWindow()
         {
             //Launch debugger..
-//#if DEBUG
-//            if (!Debugger.IsAttached)
-//            {
-//                Debugger.Launch();
-//            }
-//#endif
-
-            if (!Directory.Exists(_appPath))
-            {
-                ShowError("This update utility can only be executed by the main Tango.");
-                Environment.Exit(0);
-            }
+            //#if DEBUG
+            //            if (!Debugger.IsAttached)
+            //            {
+            //                Debugger.Launch();
+            //            }
+            //#endif
 
             InitializeComponent();
 
@@ -68,43 +62,63 @@ namespace Tango.PPC.Updater
 
         private void MainWindow_ContentRendered(object sender, EventArgs e)
         {
+            Update();
+        }
+
+        private void Update()
+        {
             try
             {
-                Update();
+                Init();
+                EnsureTangoIsDown();
+                RemoveOldDLLFiles();
+                ReplaceFiles();
+
+                txtStatus.Text = "Update completed. Starting application...";
+                DoEvents();
+                Thread.Sleep(1000);
+                StartTango(true);
             }
             catch (Exception ex)
             {
-                Debug.WriteLine(ex.ToString());
-                ShowError(ex.Message);
-                Process p = new Process();
-                p.StartInfo.FileName = _appPath + "\\" + _msProcessName + ".exe";
-                p.StartInfo.LoadUserProfile = true;
-                p.StartInfo.UseShellExecute = true;
-                p.Start();
+                ShowError($"Update failed.\n{ex.Message}");
+                StartTango(false);
+            }
+            finally
+            {
                 Environment.Exit(0);
             }
         }
 
-        private void Update()
+        private void Init()
         {
-            EnsureTangoIsDown();
-            RemoveOldDLLFiles();
-            ReplaceFiles();
-            StartTango();
-            Environment.Exit(0);
+            try
+            {
+                _appPath = String.Join(" ", App.StartupArgs);
+            }
+            catch
+            {
+                throw new ArgumentException("Error parsing startup arguments.");
+            }
+
+            if (!Directory.Exists(_appPath))
+            {
+                throw new InvalidOperationException("This update utility can only be executed by the main Tango application.");
+            }
         }
 
-        private void StartTango()
+        private void StartTango(bool success)
         {
-            txtStatus.Text = "Update completed. Starting application...";
-            DoEvents();
-            Thread.Sleep(1000);
-
             Process p = new Process();
             p.StartInfo.FileName = _appPath + "\\" + _msProcessName + ".exe";
             p.StartInfo.LoadUserProfile = true;
             p.StartInfo.UseShellExecute = true;
-            p.StartInfo.Arguments = "-update_ok";
+
+            if (success)
+            {
+                p.StartInfo.Arguments = "-update_ok";
+            }
+
             p.Start();
         }
 
@@ -138,7 +152,7 @@ namespace Tango.PPC.Updater
                     prog.Value = progress++;
                     DoEvents();
 
-                    Thread.Sleep(30);
+                    Thread.Sleep(10);
                 }
                 catch (Exception ex)
                 {
@@ -198,8 +212,7 @@ namespace Tango.PPC.Updater
 
                 if (tries > 10)
                 {
-                    ShowError("The main Tango process seems to in a frozen state. Please restart your computer and try again.");
-                    Environment.Exit(0);
+                    throw new IOException("The main Tango process seems to in a frozen state. Please restart your computer and try again.");
                 }
 
             } while (appProcess != null);