1 <configuration>
2   <runtime>
3     <legacyUnhandledExceptionPolicy enabled="true" />
4   </runtime> 
5 </configuration>

1 <configuration>
2   <startup>
3     <supportedRuntime version="v1.1.4322"/>
4   </startup>
5 </configuration>

1 [SecurityPermission(SecurityAction.Demand, Flags = SecurityPermissionFlag.ControlAppDomain)]
2 public static void Main(string[] args)
3 {
4     Application.ThreadException += new ThreadExceptionEventHandler(ErrorHandlerForm.Form1_UIThreadException);
5     Application.SetUnhandledExceptionMode(UnhandledExceptionMode.CatchException);
6     AppDomain.CurrentDomain.UnhandledException += new UnhandledExceptionEventHandler(CurrentDomain_UnhandledException);
7 
8     Application.Run(new ErrorHandlerForm());
9 }

 1 private static void Form1_UIThreadException(object sender, ThreadExceptionEventArgs t)
 2 {
 3     DialogResult result = DialogResult.Cancel;
 4     try
 5     {
 6         result = ShowThreadExceptionDialog("Windows Forms Error", t.Exception);
 7     }
 8     catch
 9     {
10         try
11         {
12             MessageBox.Show("Fatal Windows Forms Error",
13                 "Fatal Windows Forms Error", MessageBoxButtons.AbortRetryIgnore, MessageBoxIcon.Stop);
14         }
15         finally
16         {
17             Application.Exit();
18         }
19     }
20 
21     if (result == DialogResult.Abort)
22         Application.Exit();
23 }
24 
25 
26 // 由于 UnhandledException 无法阻止应用程序终止，因而此示例只是在终止前将错误记录在应用程序事件日志中。
27 private static void CurrentDomain_UnhandledException(object sender, UnhandledExceptionEventArgs e)
28 {
29     try
30     {
31         Exception ex = (Exception)e.ExceptionObject;
32         string errorMsg = "An application error occurred. Please contact the adminstrator " +
33             "with the following information:/n/n";
34 
35         if (!EventLog.SourceExists("ThreadException"))
36         {
37             EventLog.CreateEventSource("ThreadException", "Application");
38         }
39 
40         EventLog myLog = new EventLog();
41         myLog.Source = "ThreadException";
42         myLog.WriteEntry(errorMsg + ex.Message + "/n/nStack Trace:/n" + ex.StackTrace);
43     }
44     catch (Exception exc)
45     {
46         try
47         {
48             MessageBox.Show("Fatal Non-UI Error",
49                 "Fatal Non-UI Error. Could not write the error to the event log. Reason: "
50                 + exc.Message, MessageBoxButtons.OK, MessageBoxIcon.Stop);
51         }
52         finally
53         {
54             Application.Exit();
55         }
56     }
57 }
58 
59 
60 private static DialogResult ShowThreadExceptionDialog(string title, Exception e)
61 {
62     string errorMsg = "An application error occurred. Please contact the adminstrator " +
63         "with the following information:/n/n";
64     errorMsg = errorMsg + e.Message + "/n/nStack Trace:/n" + e.StackTrace;
65     return MessageBox.Show(errorMsg, title, MessageBoxButtons.AbortRetryIgnore,
66         MessageBoxIcon.Stop);
67 }

1 <?xml version="1.0"?> 
2 <configuration>
3   <runtime>
4     <legacyUnhandledExceptionPolicy enabled="true" />
5   </runtime> 
6 </configuration>

1 <?xml version="1.0"?> 
2 <configuration>
3   <startup>
4     <supportedRuntime version="v1.1.4322"/>
5   </startup>
6 </configuration>

 1 using System;
 2 using System.Diagnostics;
 3 using System.Globalization;
 4 using System.IO;
 5 using System.Runtime.InteropServices;
 6 using System.Text;
 7 using System.Threading;
 8 using System.Web;
 9  
10 namespace WebMonitor {
11     public class UnhandledExceptionModule: IHttpModule {
12 
13         static int _unhandledExceptionCount = 0;
14 
15         static string _sourceName = null;
16         static object _initLock = new object();
17         static bool _initialized = false;
18 
19         public void Init(HttpApplication app) {
20 
21             // Do this one time for each AppDomain.
22             if (!_initialized) {
23                 lock (_initLock) {
24                     if (!_initialized) { 
25                         string webenginePath = Path.Combine(RuntimeEnvironment.GetRuntimeDirectory(), "webengine.dll");
26 
27                         if (!File.Exists(webenginePath)) {
28                             throw new Exception(String.Format(CultureInfo.InvariantCulture,
29                                                               "Failed to locate webengine.dll at '{0}'.  This module requires .NET Framework 2.0.", 
30                                                               webenginePath));
31                         }
32 
33                         FileVersionInfo ver = FileVersionInfo.GetVersionInfo(webenginePath);
34                         _sourceName = string.Format(CultureInfo.InvariantCulture, "ASP.NET {0}.{1}.{2}.0",
35                                                     ver.FileMajorPart, ver.FileMinorPart, ver.FileBuildPart);
36 
37                         if (!EventLog.SourceExists(_sourceName)) {
38                             throw new Exception(String.Format(CultureInfo.InvariantCulture,
39                                                               "There is no EventLog source named '{0}'. This module requires .NET Framework 2.0.", 
40                                                               _sourceName));
41                         }
42  
43                         AppDomain.CurrentDomain.UnhandledException += new UnhandledExceptionEventHandler(OnUnhandledException);
44  
45                         _initialized = true;
46                     }
47                 }
48             }
49         }
50 
51         public void Dispose() {
52         }
53 
54         void OnUnhandledException(object o, UnhandledExceptionEventArgs e) {
55             // Let this occur one time for each AppDomain.
56             if (Interlocked.Exchange(ref _unhandledExceptionCount, 1) != 0)
57                 return;
58 
59             StringBuilder message = new StringBuilder("/r/n/r/nUnhandledException logged by UnhandledExceptionModule.dll:/r/n/r/nappId=");
60 
61             string appId = (string) AppDomain.CurrentDomain.GetData(".appId");
62             if (appId != null) {
63                 message.Append(appId);
64             }
65             
66             Exception currentException = null;
67             for (currentException = (Exception)e.ExceptionObject; currentException != null; currentException = currentException.InnerException) {
68                 message.AppendFormat("/r/n/r/ntype={0}/r/n/r/nmessage={1}/r/n/r/nstack=/r/n{2}/r/n/r/n",
69                                      currentException.GetType().FullName, 
70                                      currentException.Message,
71                                      currentException.StackTrace);
72             }          
73 
74             EventLog Log = new EventLog();
75             Log.Source = _sourceName;
76             Log.WriteEntry(message.ToString(), EventLogEntryType.Error);
77         }
78     }
79 }