v1.1.1.8a: Upon selecting the "Click here to launch The Chronicles of Spellborn", the following error is written to the event viewer:

Application: Spellborn Installer v2.exe
Framework Version: v4.0.30319
Description: The process was terminated due to an unhandled exception.
Exception Info: System.ComponentModel.Win32Exception
  at System.Diagnostics.Process.StartWithShellExecuteEx(System.Diagnostics.ProcessStartInfo)
  at System.Diagnostics.Process.Start()
  at System.Diagnostics.Process.Start(System.Diagnostics.ProcessStartInfo)
  at Spellborn_Installer_v2.mainGUI.Lbl_progressBar_Click(System.Object, System.Windows.RoutedEventArgs)
  at System.Windows.RoutedEventHandlerInfo.InvokeHandler(System.Object, System.Windows.RoutedEventArgs)
  at System.Windows.EventRoute.InvokeHandlersImpl(System.Object, System.Windows.RoutedEventArgs, Boolean)
  at System.Windows.UIElement.RaiseEventImpl(System.Windows.DependencyObject, System.Windows.RoutedEventArgs)
  at System.Windows.UIElement.RaiseEvent(System.Windows.RoutedEventArgs)
  at System.Windows.Controls.Primitives.ButtonBase.OnClick()
  at System.Windows.Controls.Button.OnClick()
  at System.Windows.Controls.Primitives.ButtonBase.OnMouseLeftButtonUp(System.Windows.Input.MouseButtonEventArgs)
  at System.Windows.UIElement.OnMouseLeftButtonUpThunk(System.Object, System.Windows.Input.MouseButtonEventArgs)
  at System.Windows.Input.MouseButtonEventArgs.InvokeEventHandler(System.Delegate, System.Object)
  at System.Windows.RoutedEventArgs.InvokeHandler(System.Delegate, System.Object)
  at System.Windows.RoutedEventHandlerInfo.InvokeHandler(System.Object, System.Windows.RoutedEventArgs)
  at System.Windows.EventRoute.InvokeHandlersImpl(System.Object, System.Windows.RoutedEventArgs, Boolean)
  at System.Windows.UIElement.ReRaiseEventAs(System.Windows.DependencyObject, System.Windows.RoutedEventArgs, System.Windows.RoutedEvent)
  at System.Windows.UIElement.OnMouseUpThunk(System.Object, System.Windows.Input.MouseButtonEventArgs)
  at System.Windows.Input.MouseButtonEventArgs.InvokeEventHandler(System.Delegate, System.Object)
  at System.Windows.RoutedEventArgs.InvokeHandler(System.Delegate, System.Object)
  at System.Windows.RoutedEventHandlerInfo.InvokeHandler(System.Object, System.Windows.RoutedEventArgs)
  at System.Windows.EventRoute.InvokeHandlersImpl(System.Object, System.Windows.RoutedEventArgs, Boolean)
  at System.Windows.UIElement.RaiseEventImpl(System.Windows.DependencyObject, System.Windows.RoutedEventArgs)
  at System.Windows.UIElement.RaiseTrustedEvent(System.Windows.RoutedEventArgs)
  at System.Windows.UIElement.RaiseEvent(System.Windows.RoutedEventArgs, Boolean)
  at System.Windows.Input.InputManager.ProcessStagingArea()
  at System.Windows.Input.InputManager.ProcessInput(System.Windows.Input.InputEventArgs)
  at System.Windows.Input.InputProviderSite.ReportInput(System.Windows.Input.InputReport)
  at System.Windows.Interop.HwndMouseInputProvider.ReportInput(IntPtr, System.Windows.Input.InputMode, Int32, System.Windows.Input.RawMouseActions, Int32, Int32, Int32)
  at System.Windows.Interop.HwndMouseInputProvider.FilterMessage(IntPtr, MS.Internal.Interop.WindowMessage, IntPtr, IntPtr, Boolean ByRef)
  at System.Windows.Interop.HwndSource.InputFilterMessage(IntPtr, Int32, IntPtr, IntPtr, Boolean ByRef)
  at MS.Win32.HwndWrapper.WndProc(IntPtr, Int32, IntPtr, IntPtr, Boolean ByRef)
  at MS.Win32.HwndSubclass.DispatcherCallbackOperation(System.Object)
  at System.Windows.Threading.ExceptionWrapper.InternalRealCall(System.Delegate, System.Object, Int32)
  at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(System.Object, System.Delegate, System.Object, Int32, System.Delegate)
  at System.Windows.Threading.Dispatcher.LegacyInvokeImpl(System.Windows.Threading.DispatcherPriority, System.TimeSpan, System.Delegate, System.Object, Int32)
  at MS.Win32.HwndSubclass.SubclassWndProc(IntPtr, Int32, IntPtr, IntPtr)
  at MS.Win32.UnsafeNativeMethods.DispatchMessage(System.Windows.Interop.MSG ByRef)
  at System.Windows.Threading.Dispatcher.PushFrameImpl(System.Windows.Threading.DispatcherFrame)
  at System.Windows.Threading.Dispatcher.PushFrame(System.Windows.Threading.DispatcherFrame)
  at System.Windows.Application.RunDispatcher(System.Object)
  at System.Windows.Application.RunInternal(System.Windows.Window)
  at System.Windows.Application.Run(System.Windows.Window)
  at Spellborn_Installer_v2.App.Main()

I'll try reinstalling.

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This error is reproducible in 100% of launches.

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Windows build 10.0.26200 N/A Build 26200