From d11e0c9c2304e886c9c4e737ce6ba6910ca9868c Mon Sep 17 00:00:00 2001
From: Brian Robbins <brianrob@microsoft.com>
Date: Thu, 19 Mar 2026 20:14:50 -0700
Subject: [PATCH] Add missing WCF infrastructure event templates to
 ApplicationServerTraceEventParser

The ApplicationServerTraceEventParser had event ID constants defined for WCF
infrastructure events (57394-57410) but no corresponding event handler properties
or template entries in EnumerateTemplates(). This caused these events to display
as 'EventID(57394)' etc. instead of their proper names like 'HandledException'
and 'ThrowingEtwException'.

Added 16 missing event handler properties and template registrations for:
- HandledException (57394), ShipAssertExceptionMessage (57395),
  ThrowingException (57396), UnhandledException (57397)
- TraceCodeEventLog* variants (57399-57403)
- HandledExceptionWarning/Error/Verbose (57404-57406)
- ThrowingExceptionVerbose (57407), EtwUnhandledException (57408)
- ThrowingEtwExceptionVerbose (57409), ThrowingEtwException (57410)

Template types and field definitions were matched to the WCF ETW manifest
(Microsoft-Windows-Application Server-Applications provider).

Also registered ApplicationServerTraceEventParser as a standard parser in
TraceLog so that PerfView's ETLX conversion picks up these templates.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
---
 .../ApplicationServerTraceEventParser.cs      | 211 +++++++++++++++++-
 src/TraceEvent/TraceLog.cs                    |   1 +
 2 files changed, 211 insertions(+), 1 deletion(-)

diff --git a/src/TraceEvent/Parsers/ApplicationServerTraceEventParser.cs b/src/TraceEvent/Parsers/ApplicationServerTraceEventParser.cs
index 4f4f84635..9c533b8ac 100644
--- a/src/TraceEvent/Parsers/ApplicationServerTraceEventParser.cs
+++ b/src/TraceEvent/Parsers/ApplicationServerTraceEventParser.cs
@@ -6053,6 +6053,199 @@ public event Action<FourStringsTemplateATraceData> HttpHandlerPickedForUrl
             }
         }
 
+        public event Action<ThreeStringsTemplateEATraceData> HandledException
+        {
+            add
+            {
+                // action, eventid, taskid, taskName, taskGuid, opcode, opcodeName, providerGuid, providerName
+                source.RegisterEventTemplate(new ThreeStringsTemplateEATraceData(value, 57394, 8140, "HandledException", Guid.Empty, 0, "Info", ProviderGuid, ProviderName));
+            }
+            remove
+            {
+                source.UnregisterEventTemplate(value, 57394, ProviderGuid);
+            }
+        }
+        public event Action<TwoStringsTemplateEATraceData> ShipAssertExceptionMessage
+        {
+            add
+            {
+                // action, eventid, taskid, taskName, taskGuid, opcode, opcodeName, providerGuid, providerName
+                source.RegisterEventTemplate(new TwoStringsTemplateEATraceData(value, 57395, 8139, "ShipAssertExceptionMessage", Guid.Empty, 0, "Info", ProviderGuid, ProviderName));
+            }
+            remove
+            {
+                source.UnregisterEventTemplate(value, 57395, ProviderGuid);
+            }
+        }
+        public event Action<FourStringsTemplateEATraceData> ThrowingException
+        {
+            add
+            {
+                // action, eventid, taskid, taskName, taskGuid, opcode, opcodeName, providerGuid, providerName
+                source.RegisterEventTemplate(new FourStringsTemplateEATraceData(value, 57396, 8138, "ThrowingException", Guid.Empty, 0, "Info", ProviderGuid, ProviderName));
+            }
+            remove
+            {
+                source.UnregisterEventTemplate(value, 57396, ProviderGuid);
+            }
+        }
+        public event Action<ThreeStringsTemplateEATraceData> UnhandledException
+        {
+            add
+            {
+                // action, eventid, taskid, taskName, taskGuid, opcode, opcodeName, providerGuid, providerName
+                source.RegisterEventTemplate(new ThreeStringsTemplateEATraceData(value, 57397, 8137, "UnhandledException", Guid.Empty, 0, "Info", ProviderGuid, ProviderName));
+            }
+            remove
+            {
+                source.UnregisterEventTemplate(value, 57397, ProviderGuid);
+            }
+        }
+        public event Action<TwoStringsTemplateTATraceData> TraceCodeEventLogCritical
+        {
+            add
+            {
+                // action, eventid, taskid, taskName, taskGuid, opcode, opcodeName, providerGuid, providerName
+                source.RegisterEventTemplate(new TwoStringsTemplateTATraceData(value, 57399, 8135, "TraceCodeEventLogCritical", Guid.Empty, 0, "Info", ProviderGuid, ProviderName));
+            }
+            remove
+            {
+                source.UnregisterEventTemplate(value, 57399, ProviderGuid);
+            }
+        }
+        public event Action<TwoStringsTemplateTATraceData> TraceCodeEventLogError
+        {
+            add
+            {
+                // action, eventid, taskid, taskName, taskGuid, opcode, opcodeName, providerGuid, providerName
+                source.RegisterEventTemplate(new TwoStringsTemplateTATraceData(value, 57400, 8134, "TraceCodeEventLogError", Guid.Empty, 0, "Info", ProviderGuid, ProviderName));
+            }
+            remove
+            {
+                source.UnregisterEventTemplate(value, 57400, ProviderGuid);
+            }
+        }
+        public event Action<TwoStringsTemplateTATraceData> TraceCodeEventLogInfo
+        {
+            add
+            {
+                // action, eventid, taskid, taskName, taskGuid, opcode, opcodeName, providerGuid, providerName
+                source.RegisterEventTemplate(new TwoStringsTemplateTATraceData(value, 57401, 8133, "TraceCodeEventLogInfo", Guid.Empty, 0, "Info", ProviderGuid, ProviderName));
+            }
+            remove
+            {
+                source.UnregisterEventTemplate(value, 57401, ProviderGuid);
+            }
+        }
+        public event Action<TwoStringsTemplateTATraceData> TraceCodeEventLogVerbose
+        {
+            add
+            {
+                // action, eventid, taskid, taskName, taskGuid, opcode, opcodeName, providerGuid, providerName
+                source.RegisterEventTemplate(new TwoStringsTemplateTATraceData(value, 57402, 8132, "TraceCodeEventLogVerbose", Guid.Empty, 0, "Info", ProviderGuid, ProviderName));
+            }
+            remove
+            {
+                source.UnregisterEventTemplate(value, 57402, ProviderGuid);
+            }
+        }
+        public event Action<TwoStringsTemplateTATraceData> TraceCodeEventLogWarning
+        {
+            add
+            {
+                // action, eventid, taskid, taskName, taskGuid, opcode, opcodeName, providerGuid, providerName
+                source.RegisterEventTemplate(new TwoStringsTemplateTATraceData(value, 57403, 8131, "TraceCodeEventLogWarning", Guid.Empty, 0, "Info", ProviderGuid, ProviderName));
+            }
+            remove
+            {
+                source.UnregisterEventTemplate(value, 57403, ProviderGuid);
+            }
+        }
+        public event Action<ThreeStringsTemplateEATraceData> HandledExceptionWarning
+        {
+            add
+            {
+                // action, eventid, taskid, taskName, taskGuid, opcode, opcodeName, providerGuid, providerName
+                source.RegisterEventTemplate(new ThreeStringsTemplateEATraceData(value, 57404, 8130, "HandledExceptionWarning", Guid.Empty, 0, "Info", ProviderGuid, ProviderName));
+            }
+            remove
+            {
+                source.UnregisterEventTemplate(value, 57404, ProviderGuid);
+            }
+        }
+        public event Action<ThreeStringsTemplateEATraceData> HandledExceptionError
+        {
+            add
+            {
+                // action, eventid, taskid, taskName, taskGuid, opcode, opcodeName, providerGuid, providerName
+                source.RegisterEventTemplate(new ThreeStringsTemplateEATraceData(value, 57405, 8129, "HandledExceptionError", Guid.Empty, 0, "Info", ProviderGuid, ProviderName));
+            }
+            remove
+            {
+                source.UnregisterEventTemplate(value, 57405, ProviderGuid);
+            }
+        }
+        public event Action<ThreeStringsTemplateEATraceData> HandledExceptionVerbose
+        {
+            add
+            {
+                // action, eventid, taskid, taskName, taskGuid, opcode, opcodeName, providerGuid, providerName
+                source.RegisterEventTemplate(new ThreeStringsTemplateEATraceData(value, 57406, 8128, "HandledExceptionVerbose", Guid.Empty, 0, "Info", ProviderGuid, ProviderName));
+            }
+            remove
+            {
+                source.UnregisterEventTemplate(value, 57406, ProviderGuid);
+            }
+        }
+        public event Action<FourStringsTemplateEATraceData> ThrowingExceptionVerbose
+        {
+            add
+            {
+                // action, eventid, taskid, taskName, taskGuid, opcode, opcodeName, providerGuid, providerName
+                source.RegisterEventTemplate(new FourStringsTemplateEATraceData(value, 57407, 8127, "ThrowingExceptionVerbose", Guid.Empty, 0, "Info", ProviderGuid, ProviderName));
+            }
+            remove
+            {
+                source.UnregisterEventTemplate(value, 57407, ProviderGuid);
+            }
+        }
+        public event Action<ThreeStringsTemplateEATraceData> EtwUnhandledException
+        {
+            add
+            {
+                // action, eventid, taskid, taskName, taskGuid, opcode, opcodeName, providerGuid, providerName
+                source.RegisterEventTemplate(new ThreeStringsTemplateEATraceData(value, 57408, 8126, "EtwUnhandledException", Guid.Empty, 0, "Info", ProviderGuid, ProviderName));
+            }
+            remove
+            {
+                source.UnregisterEventTemplate(value, 57408, ProviderGuid);
+            }
+        }
+        public event Action<FourStringsTemplateEATraceData> ThrowingEtwExceptionVerbose
+        {
+            add
+            {
+                // action, eventid, taskid, taskName, taskGuid, opcode, opcodeName, providerGuid, providerName
+                source.RegisterEventTemplate(new FourStringsTemplateEATraceData(value, 57409, 8125, "ThrowingEtwExceptionVerbose", Guid.Empty, 0, "Info", ProviderGuid, ProviderName));
+            }
+            remove
+            {
+                source.UnregisterEventTemplate(value, 57409, ProviderGuid);
+            }
+        }
+        public event Action<FourStringsTemplateEATraceData> ThrowingEtwException
+        {
+            add
+            {
+                // action, eventid, taskid, taskName, taskGuid, opcode, opcodeName, providerGuid, providerName
+                source.RegisterEventTemplate(new FourStringsTemplateEATraceData(value, 57410, 8124, "ThrowingEtwException", Guid.Empty, 0, "Info", ProviderGuid, ProviderName));
+            }
+            remove
+            {
+                source.UnregisterEventTemplate(value, 57410, ProviderGuid);
+            }
+        }
+
         #region Event ID Definitions
         private const TraceEventID WorkflowInstanceRecordEventID = (TraceEventID)100;
         private const TraceEventID WorkflowInstanceUnhandledExceptionRecordEventID = (TraceEventID)101;
@@ -6544,7 +6737,7 @@ protected internal override void EnumerateTemplates(Func<string, string, EventFi
         {
             if (s_templates == null)
             {
-                var templates = new TraceEvent[464];
+                var templates = new TraceEvent[480];
                 templates[0] = new Multidata9TemplateHATraceData(null, 100, 2608, "WorkflowInstanceRecord", WorkflowInstanceRecordTaskGuid, 0, "Info", ProviderGuid, ProviderName);
                 templates[1] = new Multidata10TemplateHATraceData(null, 101, 2608, "WorkflowInstanceRecord", WorkflowInstanceRecordTaskGuid, 150, "UnhandledExceptionRecord", ProviderGuid, ProviderName);
                 templates[2] = new Multidata8TemplateHATraceData(null, 102, 2608, "WorkflowInstanceRecord", WorkflowInstanceRecordTaskGuid, 144, "AbortedRecord", ProviderGuid, ProviderName);
@@ -7009,6 +7202,22 @@ protected internal override void EnumerateTemplates(Func<string, string, EventFi
                 templates[461] = new Multidata18TemplateATraceData(null, 0xFFFF, 2597, "TrackingProfile", TrackingProfileTaskGuid, 0, "Info", ProviderGuid, ProviderName);
                 templates[462] = new Multidata84TemplateATraceData(null, 0xFFFF, 2594, "Throttles", ThrottlesTaskGuid, 0, "Info", ProviderGuid, ProviderName);
                 templates[463] = new FourStringsTemplateATraceData(null, 0xFFFF, 2526, "CreateWorkflowServiceHost", CreateWorkflowServiceHostTaskGuid, 0, "Info", ProviderGuid, ProviderName);
+                templates[464] = new ThreeStringsTemplateEATraceData(null, 57394, 8140, "HandledException", Guid.Empty, 0, "Info", ProviderGuid, ProviderName);
+                templates[465] = new TwoStringsTemplateEATraceData(null, 57395, 8139, "ShipAssertExceptionMessage", Guid.Empty, 0, "Info", ProviderGuid, ProviderName);
+                templates[466] = new FourStringsTemplateEATraceData(null, 57396, 8138, "ThrowingException", Guid.Empty, 0, "Info", ProviderGuid, ProviderName);
+                templates[467] = new ThreeStringsTemplateEATraceData(null, 57397, 8137, "UnhandledException", Guid.Empty, 0, "Info", ProviderGuid, ProviderName);
+                templates[468] = new TwoStringsTemplateTATraceData(null, 57399, 8135, "TraceCodeEventLogCritical", Guid.Empty, 0, "Info", ProviderGuid, ProviderName);
+                templates[469] = new TwoStringsTemplateTATraceData(null, 57400, 8134, "TraceCodeEventLogError", Guid.Empty, 0, "Info", ProviderGuid, ProviderName);
+                templates[470] = new TwoStringsTemplateTATraceData(null, 57401, 8133, "TraceCodeEventLogInfo", Guid.Empty, 0, "Info", ProviderGuid, ProviderName);
+                templates[471] = new TwoStringsTemplateTATraceData(null, 57402, 8132, "TraceCodeEventLogVerbose", Guid.Empty, 0, "Info", ProviderGuid, ProviderName);
+                templates[472] = new TwoStringsTemplateTATraceData(null, 57403, 8131, "TraceCodeEventLogWarning", Guid.Empty, 0, "Info", ProviderGuid, ProviderName);
+                templates[473] = new ThreeStringsTemplateEATraceData(null, 57404, 8130, "HandledExceptionWarning", Guid.Empty, 0, "Info", ProviderGuid, ProviderName);
+                templates[474] = new ThreeStringsTemplateEATraceData(null, 57405, 8129, "HandledExceptionError", Guid.Empty, 0, "Info", ProviderGuid, ProviderName);
+                templates[475] = new ThreeStringsTemplateEATraceData(null, 57406, 8128, "HandledExceptionVerbose", Guid.Empty, 0, "Info", ProviderGuid, ProviderName);
+                templates[476] = new FourStringsTemplateEATraceData(null, 57407, 8127, "ThrowingExceptionVerbose", Guid.Empty, 0, "Info", ProviderGuid, ProviderName);
+                templates[477] = new ThreeStringsTemplateEATraceData(null, 57408, 8126, "EtwUnhandledException", Guid.Empty, 0, "Info", ProviderGuid, ProviderName);
+                templates[478] = new FourStringsTemplateEATraceData(null, 57409, 8125, "ThrowingEtwExceptionVerbose", Guid.Empty, 0, "Info", ProviderGuid, ProviderName);
+                templates[479] = new FourStringsTemplateEATraceData(null, 57410, 8124, "ThrowingEtwException", Guid.Empty, 0, "Info", ProviderGuid, ProviderName);
                 s_templates = templates;
             }
             foreach (var template in s_templates)
diff --git a/src/TraceEvent/TraceLog.cs b/src/TraceEvent/TraceLog.cs
index b7957ae87..9fc84f6be 100644
--- a/src/TraceEvent/TraceLog.cs
+++ b/src/TraceEvent/TraceLog.cs
@@ -1233,6 +1233,7 @@ internal void RegisterStandardParsers()
 
             new SampleProfilerTraceEventParser(this);
             new WpfTraceEventParser(this);
+            new ApplicationServerTraceEventParser(this);
 
             var dynamicParser = Dynamic;