Как получить список подпапок, запускал из под админа, нет результата

Пропускать не вижу смысла, папка то важная.

Доброго времени суток, ошибочку дай   

Вот:
System.UnauthorizedAccessException was unhandled
  Message="Отказано в доступе по пути \"c:\\Documents and Settings\"."
  Source="mscorlib"
  StackTrace:
       в System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath)
       в System.IO.Directory.InternalGetFileDirectoryNames(String path, String userPathOriginal, String searchPattern, Boolean includeFiles, Boolean includeDirs, SearchOption searchOption)
       в System.IO.DirectoryInfo.GetDirectories(String searchPattern, SearchOption searchOption)
       в System.IO.DirectoryInfo.GetDirectories()
       в focar.DirectoryPLClass.play() в D:\CarWPF\focarWin\focar\focar\DirectoryPLClass.cs:строка 38
       в focar.MultimediaDirPage.listItems_SelectionChanged(Object sender, SelectionChangedEventArgs e) в D:\CarWPF\focarWin\focar\focar\MultimediaDirPage.xaml.cs:строка 71
       в System.Windows.Controls.SelectionChangedEventArgs.InvokeEventHandler(Delegate genericHandler, Object genericTarget)
       в System.Windows.RoutedEventArgs.InvokeHandler(Delegate handler, Object target)
       в System.Windows.RoutedEventHandlerInfo.InvokeHandler(Object target, RoutedEventArgs routedEventArgs)
       в System.Windows.EventRoute.InvokeHandlersImpl(Object source, RoutedEventArgs args, Boolean reRaised)
       в System.Windows.UIElement.RaiseEventImpl(DependencyObject sender, RoutedEventArgs args)
       в System.Windows.UIElement.RaiseEvent(RoutedEventArgs e)
       в System.Windows.Controls.ListBox.OnSelectionChanged(SelectionChangedEventArgs e)
       в System.Windows.Controls.Primitives.Selector.InvokeSelectionChanged(List`1 unselectedItems, List`1 selectedItems)
       в System.Windows.Controls.Primitives.Selector.SelectionChanger.End()
       в System.Windows.Controls.Primitives.Selector.SetSelectedHelper(Object item, FrameworkElement UI, Boolean selected)
       в System.Windows.Controls.Primitives.Selector.NotifyIsSelectedChanged(FrameworkElement container, Boolean selected, RoutedEventArgs e)
       в System.Windows.Controls.Primitives.Selector.OnSelected(Object sender, RoutedEventArgs e)
       в System.Windows.RoutedEventHandlerInfo.InvokeHandler(Object target, RoutedEventArgs routedEventArgs)
       в System.Windows.EventRoute.InvokeHandlersImpl(Object source, RoutedEventArgs args, Boolean reRaised)
       в System.Windows.UIElement.RaiseEventImpl(DependencyObject sender, RoutedEventArgs args)
       в System.Windows.UIElement.RaiseEvent(RoutedEventArgs e)
       в System.Windows.Controls.ListBoxItem.OnSelected(RoutedEventArgs e)
       в System.Windows.Controls.ListBoxItem.OnIsSelectedChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
       в System.Windows.DependencyObject.OnPropertyChanged(DependencyPropertyChangedEventArgs e)
       в System.Windows.FrameworkElement.OnPropertyChanged(DependencyPropertyChangedEventArgs e)
       в System.Windows.DependencyObject.NotifyPropertyChange(DependencyPropertyChangedEventArgs args)
       в System.Windows.DependencyObject.UpdateEffectiveValue(EntryIndex entryIndex, DependencyProperty dp, PropertyMetadata metadata, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, Boolean coerceWithDeferredReference, OperationType operationType)
       в System.Windows.DependencyObject.SetValueCommon(DependencyProperty dp, Object value, PropertyMetadata metadata, Boolean coerceWithDeferredReference, OperationType operationType, Boolean isInternal)
       в System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
       в System.Windows.Controls.ListBoxItem.set_IsSelected(Boolean value)
       в System.Windows.Controls.ListBox.NotifyListItemClicked(ListBoxItem item, MouseButton mouseButton)
       в System.Windows.Controls.ListBoxItem.HandleMouseButtonDown(MouseButton mouseButton)
       в System.Windows.Controls.ListBoxItem.OnMouseLeftButtonDown(MouseButtonEventArgs e)
       в System.Windows.UIElement.OnMouseLeftButtonDownThunk(Object sender, MouseButtonEventArgs e)
       в System.Windows.Input.MouseButtonEventArgs.InvokeEventHandler(Delegate genericHandler, Object genericTarget)
       в System.Windows.RoutedEventArgs.InvokeHandler(Delegate handler, Object target)
       в System.Windows.RoutedEventHandlerInfo.InvokeHandler(Object target, RoutedEventArgs routedEventArgs)
       в System.Windows.EventRoute.InvokeHandlersImpl(Object source, RoutedEventArgs args, Boolean reRaised)
       в System.Windows.UIElement.ReRaiseEventAs(DependencyObject sender, RoutedEventArgs args, RoutedEvent newEvent)
       в System.Windows.UIElement.CrackMouseButtonEventAndReRaiseEvent(DependencyObject sender, MouseButtonEventArgs e)
       в System.Windows.UIElement.OnMouseDownThunk(Object sender, MouseButtonEventArgs e)
       в System.Windows.Input.MouseButtonEventArgs.InvokeEventHandler(Delegate genericHandler, Object genericTarget)
       в System.Windows.RoutedEventArgs.InvokeHandler(Delegate handler, Object target)
       в System.Windows.RoutedEventHandlerInfo.InvokeHandler(Object target, RoutedEventArgs routedEventArgs)
       в System.Windows.EventRoute.InvokeHandlersImpl(Object source, RoutedEventArgs args, Boolean reRaised)
       в System.Windows.UIElement.RaiseEventImpl(DependencyObject sender, RoutedEventArgs args)
       в System.Windows.UIElement.RaiseEvent(RoutedEventArgs args, Boolean trusted)
       в System.Windows.Input.InputManager.ProcessStagingArea()
       в System.Windows.Input.InputManager.ProcessInput(InputEventArgs input)
       в System.Windows.Input.InputProviderSite.ReportInput(InputReport inputReport)
       в System.Windows.Interop.HwndMouseInputProvider.ReportInput(IntPtr hwnd, InputMode mode, Int32 timestamp, RawMouseActions actions, Int32 x, Int32 y, Int32 wheel)
       в System.Windows.Interop.HwndMouseInputProvider.FilterMessage(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
       в System.Windows.Interop.HwndSource.InputFilterMessage(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
       в MS.Win32.HwndWrapper.WndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
       в MS.Win32.HwndSubclass.DispatcherCallbackOperation(Object o)
       в System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Boolean isSingleParameter)
       в System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Boolean isSingleParameter, Delegate catchHandler)
       в System.Windows.Threading.Dispatcher.WrappedInvoke(Delegate callback, Object args, Boolean isSingleParameter, Delegate catchHandler)
       в System.Windows.Threading.Dispatcher.InvokeImpl(DispatcherPriority priority, TimeSpan timeout, Delegate method, Object args, Boolean isSingleParameter)
       в System.Windows.Threading.Dispatcher.Invoke(DispatcherPriority priority, Delegate method, Object arg)
       в MS.Win32.HwndSubclass.SubclassWndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam)
       в MS.Win32.UnsafeNativeMethods.DispatchMessage(MSG& msg)
       в System.Windows.Threading.Dispatcher.PushFrameImpl(DispatcherFrame frame)
       в System.Windows.Threading.Dispatcher.PushFrame(DispatcherFrame frame)
       в System.Windows.Threading.Dispatcher.Run()
       в System.Windows.Application.RunDispatcher(Object ignore)
       в System.Windows.Application.RunInternal(Window window)
       в System.Windows.Application.Run(Window window)
       в System.Windows.Application.Run()
       в focar.App.Main() в D:\CarWPF\focarWin\focar\focar\obj\Debug\App.g.cs:строка 0
       в System.AppDomain._nExecuteAssembly(Assembly assembly, String[] args)
       в System.AppDomain.nExecuteAssembly(Assembly assembly, String[] args)
       в System.Runtime.Hosting.ManifestRunner.Run(Boolean checkAptModel)
       в System.Runtime.Hosting.ManifestRunner.ExecuteAsAssembly()
       в System.Runtime.Hosting.ApplicationActivator.CreateInstance(ActivationContext activationContext, String[] activationCustomData)
       в System.Runtime.Hosting.ApplicationActivator.CreateInstance(ActivationContext activationContext)
       в System.Activator.CreateInstance(ActivationContext activationContext)
       в Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssemblyDebugInZone()
       в System.Threading.ThreadHelper.ThreadStart_Context(Object state)
       в System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
       в System.Threading.ThreadHelper.ThreadStart()
  InnerException: 

Виста?     

Да

Ну вот. В висте админ по-умолчанию не имеет прав на эту папку. Вот такой вот дибилизм от майкрософт   
Либо определи права, либо согласись с майкрософтом в том что нефиг лезть тебе в эту папку =)

КРУТО!!!!!! А как правильно проверить что прав на папку нету после получения

В таких случаях наверное лучше (хоть и не правильнее) ловить ексепшин. Мало ли, может папки вообще не существует - там что хочешь может быть, не обязательно недостаток прав.

Ясно, спасибо!

а если система на диске, скажем, D?
для таких целей стоит пользовать Enviroment.GetFolderPath(Environment.SpecialFolder folder)