Microsoft-IE-JSDumpHeap

7 events across 1 channel

EventTitleChannel
1JSDumpHeapEnvelopeStartApplication
2JSDumpHeapEnvelopeStop_V1Application
3JSDumpHeapBulkNodeApplication
4JSDumpHeapBulkAttributeApplication
5JSDumpHeapBulkEdgeApplication
6JSDumpHeapStringTableApplication
7JSDumpHeapDoubleTableApplication

Event ID 1: JSDumpHeapEnvelopeStart

#
Provider
Microsoft-IE-JSDumpHeap
Channel
Application
Task
JSDumpHeapEnvelope
Opcode
Start

Fields #

NameDescription
Settings UnicodeString

Event ID 2: JSDumpHeapEnvelopeStop_V1

#
Provider
Microsoft-IE-JSDumpHeap
Channel
Application
Task
JSDumpHeapEnvelope
Opcode
Stop

Fields #

NameDescription
Summary UnicodeString

Event ID 3: JSDumpHeapBulkNode

#
Provider
Microsoft-IE-JSDumpHeap
Channel
Application
Task
JSDumpHeapBulkNode

Fields #

NameDescription
Index UInt32
Count UInt32
Values Int8

Event ID 4: JSDumpHeapBulkAttribute

#
Provider
Microsoft-IE-JSDumpHeap
Channel
Application
Task
JSDumpHeapBulkAttribute

Fields #

NameDescription
Index UInt32
Count UInt32
Values Int8

Event ID 5: JSDumpHeapBulkEdge

#
Provider
Microsoft-IE-JSDumpHeap
Channel
Application
Task
JSDumpHeapBulkEdge

Fields #

NameDescription
Index UInt32
Count UInt32
Values Int8

Event ID 6: JSDumpHeapStringTable

#
Provider
Microsoft-IE-JSDumpHeap
Channel
Application
Task
JSDumpHeapStringTable

Fields #

NameDescription
Index UInt32
Count UInt32
Values Int8

Event ID 7: JSDumpHeapDoubleTable

#
Provider
Microsoft-IE-JSDumpHeap
Channel
Application
Task
JSDumpHeapDoubleTable

Fields #

NameDescription
Index UInt32
Count UInt32
Values Int8

Provenance

Where this provider's schema came from, and which Windows build it was observed on. Windows can change a provider's event schema between builds, so use this to judge whether it matches the build you collect from.

ETW provider GUID 7f8e35ca-68e8-41b9-86fe-d6adc5b327e7

Defined in edgehtml.dll, which carries the event manifest.

Observed on:

  • WS2022-20348.4893 · schema read from the registered manifest · binary version 11.00.20348.1 · captured 2026-06-02
  • Win11-26200.6584 · schema read from the registered manifest · binary version 11.00.26100.1 · captured 2026-06-02

Downloads

Credits

  • Microsoft - authored the ETW manifests and PDBs the schema comes from
  • jdu2600 - the event-schema TSV format this catalog adopted
  • nasbench - the tool that dumps registered providers and manifests