我今天刚刚开始在应用程序发布时看到这个Exception，其应用程序已经投入生产3年。
System.TypeInitializationException: The type initializer for 'MS.Win32.Penimc.UnsafeNativeMethods' threw an exception. ---> System.Runtime.InteropServices.COMException: Class not registered (Exception from HRESULT: 0x80040154 (REGDB_E_CLASSNOTREG))
at MS.Win32.Penimc.UnsafeNativeMethods.CoCreateInstance(Guid& clsid, Object punkOuter, Int32 context, Guid& iid)
at MS.Win32.Penimc.UnsafeNativeMethods.CreatePimcManager()
at MS.Win32.Penimc.UnsafeNativeMethods..cctor()
--- End of inner exception stack trace ---
at MS.Win32.Penimc.UnsafeNativeMethods.CreateResetEvent(IntPtr& handle)
at System.Windows.Input.PenThreadWorker..ctor()
at System.Windows.Input.PenThreadPool.GetPenThreadForPenContextHelper(PenContext penContext)
at System.Windows.Input.PenThreadPool.GetPenThreadForPenContext(PenContext penContext)
at System.Windows.Input.StylusWisp.WispTabletDeviceCollection.UpdateTabletsImpl()
at System.Windows.Input.StylusWisp.WispTabletDeviceCollection.UpdateTablets()
at System.Windows.Input.StylusWisp.WispTabletDeviceCollection..ctor()
at System.Windows.Input.StylusWisp.WispLogic.get_WispTabletDevices()
at System.Windows.Input.StylusWisp.WispLogic.RegisterHwndForInput(InputManager inputManager, PresentationSource inputSource)
at System.Windows.Interop.HwndStylusInputProvider..ctor(HwndSource source)
at System.Windows.Interop.HwndSource.Initialize(HwndSourceParameters parameters)
at System.Windows.Window.CreateSourceWindow(Boolean duringShow)
at System.Windows.Window.CreateSourceWindowDuringShow()
at System.Windows.Window.SafeCreateWindowDuringShow()
at System.Windows.Window.ShowHelper(Object booleanBox)
at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)
at System.Windows.Threading.DispatcherOperation.InvokeImpl()
at System.Windows.Threading.DispatcherOperation.InvokeInSecurityContext(Object state)
at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
at MS.Internal.CulturePreservingExecutionContext.Run(CulturePreservingExecutionContext executionContext, ContextCallback callback, Object state)
at System.Windows.Threading.DispatcherOperation.Invoke()
at System.Windows.Threading.Dispatcher.ProcessQueue()
at System.Windows.Threading.Dispatcher.WndProcHook(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
at MS.Win32.HwndWrapper.WndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
at MS.Win32.HwndSubclass.DispatcherCallbackOperation(Object o)
at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)
at System.Windows.Threading.Dispatcher.LegacyInvokeImpl(DispatcherPriority priority, TimeSpan timeout, Delegate method, Object args, Int32 numArgs)
at MS.Win32.HwndSubclass.SubclassWndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam)
at MS.Win32.UnsafeNativeMethods.DispatchMessage(MSG& msg)
at System.Windows.Threading.Dispatcher.PushFrameImpl(DispatcherFrame frame)
at System.Windows.Threading.Dispatcher.PushFrame(DispatcherFrame frame)
at System.Windows.Application.RunDispatcher(Object ignore)
at System.Windows.Application.RunInternal(Window window)
at System.Windows.Application.Run(Window window)
at APSSSentinel.App.Main()
显然，一些使用VS2017获得安装了.NET 4.7的Windows更新的开发人员也遇到了这种崩溃，现在看来推荐的解决方法是关闭触控支持。
根据我的申请，这并不理想。有没有其他人遇到这种情况，并找到了其他任何解决方法？
答案 0 :(得分：17)
更新：Microsoft现在已经在manual update 中解决了这个问题（正如Jürgen所述），我个人会坚持使用解决方法，直到修复程序在自动更新中因为要让每个用户都安装手动更新会有很多工作。
<小时/> 这显然是.Net 4.7中的一个错误，它会影响具有触摸输入设备的Windows 7和8 / 8.1系统。因此，人们可以希望Microsoft在未来的更新中解决这个问题。同时，保留完整功能的唯一方法是卸载并隐藏更新。
其他选项是在app.config中禁用stylys和触摸支持（如在链接中）或在代码中使用4.6或更高版本编译应用程序。您没有说明为什么不理想，但我认为需要这些功能？请注意，禁用并不意味着每个应用程序都无法使用触摸设备，而是仅使用可通过鼠标访问的功能。 更新：显然，没有鼠标的触摸设备用户将无法使用需要滚动的UI。
以下是来这里寻求快速解决方案的代码示例：
在App.config中（适用于使用任何框架版本编译的应用程序）
<configuration>
<runtime>
<AppContextSwitchOverrides value="Switch.System.Windows.Input.Stylus.DisableStylusAndTouchSupport=true" />
</runtime>
</configuration>
在代码中（使用.Net Framework＆gt; = 4.6编译时）
protected override void OnStartup(StartupEventArgs e)
{
AppContext.SetSwitch("Switch.System.Windows.Input.Stylus.DisableStylusAndTouchSupport", true);
base.OnStartup(e);
}
答案 1 :(得分：3)