Microsoft-Windows-Kernel-Process

Event	Title	Channel	Sample	Rule
1	Process ProcessID started at time ProcessSequenceNumber by parent CreateTime …	Analytic	Y	N
2	Process ProcessID (which started at time CreateTime) stopped at time ExitTime …	Analytic	Y	N
3	Thread ThreadID (in Process ProcessID) started.	Analytic	Y	N
4	Thread ThreadID (in Process ProcessID) stopped.	Analytic	Y	N
5	Process ProcessID had an image loaded with name ImageName.	Analytic	Y	N
6	Process ProcessID had an image unloaded with name ImageName.	Analytic	Y	N
7	Base CPU priority of thread ThreadID in process ProcessID was changed from …	Analytic	Y	N
8	CPU priority of thread ThreadID in process ProcessID was changed from …	Analytic	Y	N
9	Page priority of thread ThreadID in process ProcessID was changed from …	Analytic	Y	N
10	I/O priority of thread ThreadID in process ProcessID was changed from …	Analytic	Y	N
11	Execution of the process FrozenProcessID has been suspended.	Analytic	N	N
12	Execution of the process FrozenProcessID has been resumed.	Analytic	N	N
13	Job Container ID started with status code Job ID.	Analytic	Y	N
14	Job Container ID terminated with status code Job ID.	Analytic	Y	N
15	Enumerated process ProcessID had started at time ProcessSequenceNumber by parent …	Analytic	N	N
16	task_0	Operational	N	N
17	PsDiskIoAttributionStart	Analytic	N	N
18	PsDiskIoAttributionStop	Analytic	N	N
19	PsIoRateControlStart_V2	Analytic	N	N
20	PsIoRateControlStop_V2	Analytic	N	N
21	ThreadWorkOnBehalfUpdate	Analytic	Y	N
22	JobServerSiloStart	Analytic	N	N
23	JobServerSiloStart23	Analytic	N	N
24	JobServerSiloStartStop	Analytic	N	N
25	JobServerSiloStart25	Analytic	N	N
26	JobServerSiloStartStop26	Analytic	N	N
27	ProcessInPrivateSet	Analytic	N	N

Event ID 1: Process ProcessID started at time ProcessSequenceNumber by parent CreateTime running in session ParentProcessID with name ParentProcessSequenceNumber.

Channel: Analytic
Also via: realtime ETW trace
Level: Informational
Task: ProcessStart
Opcode: Start

Message #

Process %1 started at time %2 by parent %3 running in session %4 with name %5.

Fields #

Name	Description
`ProcessID` UInt32
`ProcessSequenceNumber` UInt64
`CreateTime` FILETIME
`ParentProcessID` UInt32
`ParentProcessSequenceNumber` UInt64
`SessionID` UInt32
`Flags` UInt32
`ProcessTokenElevationType` UInt32
`ProcessTokenIsElevated` UInt32
`MandatoryLabel` SID
`ImageName` UnicodeString
`ImageChecksum` UInt32
`TimeDateStamp` UInt32
`PackageFullName` UnicodeString
`PackageRelativeAppId` UnicodeString
`SecurityMitigations` UInt32

Example Event #

{
  "system": {
    "provider": "Microsoft-Windows-Kernel-Process",
    "guid": "{22fb2cd6-0e7b-422b-a0c7-2fad1fd0e716}",
    "event_source_name": "",
    "event_id": "1",
    "version": "3",
    "level": "4",
    "task": "1",
    "opcode": "1",
    "keywords": 9223372036854775824,
    "time_created": "2026-03-16T00:21:34.692445600+00:00",
    "event_record_id": 0,
    "correlation": {
      "ActivityID": "{00000000-0000-0000-0000-000000000000}"
    },
    "execution": {
      "process_id": "10736",
      "thread_id": "11352"
    },
    "channel": "Microsoft-Windows-Kernel-Process/Analytic",
    "computer": "",
    "security": {
      "user_id": ""
    }
  },
  "event_data": {
    "ProcessID": "   12824",
    "ProcessSequenceNumber": "11445",
    "CreateTime": "2026-03-16T00:21:34.692334100Z",
    "ParentProcessID": "   10736",
    "ParentProcessSequenceNumber": "11430",
    "SessionID": "       0",
    "Flags": "       0",
    "ProcessTokenElevationType": "       1",
    "ProcessTokenIsElevated": "       1",
    "MandatoryLabel": "S-1-16-12288",
    "ImageName": "\\Device\\HarddiskVolume4\\Windows\\System32\\logman.exe",
    "ImageChecksum": "0x23D2D",
    "TimeDateStamp": "0x4E0C0A88",
    "PackageFullName": "",
    "PackageRelativeAppId": ""
  },
  "message": ""
}

Event ID 2: Process ProcessID (which started at time CreateTime) stopped at time ExitTime with exit code ExitCode.

Channel: Analytic
Also via: realtime ETW trace
Level: Informational
Task: ProcessStop
Opcode: Stop

Message #

Process %1 (which started at time %3) stopped at time %4 with exit code %5.

Fields #

Name	Description
`ProcessID` UInt32
`ProcessSequenceNumber` UInt64
`CreateTime` FILETIME
`ExitTime` FILETIME
`ExitCode` UInt32
`TokenElevationType` UInt32	Token elevation type (1=Default, 2=Full, 3=Limited). Known values `%%1936` TokenElevationTypeDefault (1) `%%1937` TokenElevationTypeFull (2) `%%1938` TokenElevationTypeLimited (3) `1` TokenElevationTypeDefault `2` TokenElevationTypeFull `3` TokenElevationTypeLimited
`HandleCount` UInt32
`CommitCharge` UInt64
`CommitPeak` UInt64
`CPUCycleCount` UInt64
`ReadOperationCount` UInt32
`WriteOperationCount` UInt32
`ReadTransferKiloBytes` UInt32
`WriteTransferKiloBytes` UInt32
`HardFaultCount` UInt32
`ImageName` AnsiString

Example Event #

{
  "system": {
    "provider": "Microsoft-Windows-Kernel-Process",
    "guid": "{22fb2cd6-0e7b-422b-a0c7-2fad1fd0e716}",
    "event_source_name": "",
    "event_id": "2",
    "version": "2",
    "level": "4",
    "task": "2",
    "opcode": "2",
    "keywords": 9223372036854775824,
    "time_created": "2026-03-16T00:21:34.683819100+00:00",
    "event_record_id": 0,
    "correlation": {
      "ActivityID": "{00000000-0000-0000-0000-000000000000}"
    },
    "execution": {
      "process_id": "12260",
      "thread_id": "12100"
    },
    "channel": "Microsoft-Windows-Kernel-Process/Analytic",
    "computer": "",
    "security": {
      "user_id": ""
    }
  },
  "event_data": {
    "ProcessID": "   12260",
    "ProcessSequenceNumber": "11443",
    "CreateTime": "2026-03-16T00:21:34.308419900Z",
    "ExitTime": "2026-03-16T00:21:34.682710100Z",
    "ExitCode": "       0",
    "TokenElevationType": "       1",
    "HandleCount": "     122",
    "CommitCharge": "1835008",
    "CommitPeak": "2371584",
    "CPUCycleCount": "365618549",
    "ReadOperationCount": "       0",
    "WriteOperationCount": "       1",
    "ReadTransferKiloBytes": "       0",
    "WriteTransferKiloBytes": "       0",
    "HardFaultCount": "       0",
    "ImageName": "logman.exe"
  },
  "message": ""
}

Event ID 3: Thread ThreadID (in Process ProcessID) started.

Channel: Analytic
Also via: realtime ETW trace
Level: Informational
Task: ThreadStart
Opcode: Start

Message #

Thread %2 (in Process %1) started.

Fields #

Name	Description
`ProcessID` UInt32
`ThreadID` UInt32
`StackBase` Pointer
`StackLimit` Pointer
`UserStackBase` Pointer
`UserStackLimit` Pointer
`StartAddr` Pointer
`Win32StartAddr` Pointer
`TebBase` Pointer
`SubProcessTag` UInt32

Example Event #

{
  "system": {
    "provider": "Microsoft-Windows-Kernel-Process",
    "guid": "{22fb2cd6-0e7b-422b-a0c7-2fad1fd0e716}",
    "event_source_name": "",
    "event_id": "3",
    "version": "1",
    "level": "4",
    "task": "3",
    "opcode": "1",
    "keywords": 9223372036854775840,
    "time_created": "2026-03-16T00:21:34.697172400+00:00",
    "event_record_id": 0,
    "correlation": {
      "ActivityID": "{00000000-0000-0000-0000-000000000000}"
    },
    "execution": {
      "process_id": "10736",
      "thread_id": "11352"
    },
    "channel": "Microsoft-Windows-Kernel-Process/Analytic",
    "computer": "",
    "security": {
      "user_id": ""
    }
  },
  "event_data": {
    "ProcessID": "   12824",
    "ThreadID": "    8012",
    "StackBase": "0xFFFF95027FC38000",
    "StackLimit": "0xFFFF95027FC32000",
    "UserStackBase": "0xE6783B0000",
    "UserStackLimit": "0xE6783AE000",
    "StartAddr": "0x7FF7CE4D1BE0",
    "Win32StartAddr": "0x7FF7CE4D1BE0",
    "TebBase": "0xE6784AA000",
    "SubProcessTag": "       0"
  },
  "message": ""
}

Event ID 4: Thread ThreadID (in Process ProcessID) stopped.

Channel: Analytic
Also via: realtime ETW trace
Level: Informational
Task: ThreadStop
Opcode: Stop

Message #

Thread %2 (in Process %1) stopped.

Fields #

Name	Description
`ProcessID` UInt32
`ThreadID` UInt32
`StackBase` Pointer
`StackLimit` Pointer
`UserStackBase` Pointer
`UserStackLimit` Pointer
`StartAddr` Pointer
`Win32StartAddr` Pointer
`TebBase` Pointer
`SubProcessTag` UInt32
`CycleTime` UInt64

Example Event #

{
  "system": {
    "provider": "Microsoft-Windows-Kernel-Process",
    "guid": "{22fb2cd6-0e7b-422b-a0c7-2fad1fd0e716}",
    "event_source_name": "",
    "event_id": "4",
    "version": "1",
    "level": "4",
    "task": "4",
    "opcode": "2",
    "keywords": 9223372036854775840,
    "time_created": "2026-03-16T00:21:34.681762900+00:00",
    "event_record_id": 0,
    "correlation": {
      "ActivityID": "{00000000-0000-0000-0000-000000000000}"
    },
    "execution": {
      "process_id": "12260",
      "thread_id": "10668"
    },
    "channel": "Microsoft-Windows-Kernel-Process/Analytic",
    "computer": "",
    "security": {
      "user_id": ""
    }
  },
  "event_data": {
    "ProcessID": "   12260",
    "ThreadID": "   10668",
    "StackBase": "0xFFFF95027FBAB000",
    "StackLimit": "0xFFFF95027FBA5000",
    "UserStackBase": "0xF308500000",
    "UserStackLimit": "0xF3084FE000",
    "StartAddr": "0x7FFC84CA5720",
    "Win32StartAddr": "0x7FFC84CA5720",
    "TebBase": "0xF308318000",
    "SubProcessTag": "       0",
    "CycleTime": "0x7BC303"
  },
  "message": ""
}

Event ID 5: Process ProcessID had an image loaded with name ImageName.

Channel: Analytic
Also via: realtime ETW trace
Level: Informational
Task: ImageLoad

Message #

Process %3 had an image loaded with name %7.

Fields #

Name	Description
`ImageBase` Pointer
`ImageSize` Pointer
`ProcessID` UInt32
`ImageCheckSum` UInt32
`TimeDateStamp` UInt32
`DefaultBase` Pointer
`ImageName` UnicodeString

Example Event #

{
  "system": {
    "provider": "Microsoft-Windows-Kernel-Process",
    "guid": "{22fb2cd6-0e7b-422b-a0c7-2fad1fd0e716}",
    "event_source_name": "",
    "event_id": "5",
    "version": "0",
    "level": "4",
    "task": "5",
    "opcode": "0",
    "keywords": 9223372036854775872,
    "time_created": "2026-03-16T00:21:34.701692800+00:00",
    "event_record_id": 0,
    "correlation": {
      "ActivityID": "{00000000-0000-0000-0000-000000000000}"
    },
    "execution": {
      "process_id": "12824",
      "thread_id": "8012"
    },
    "channel": "Microsoft-Windows-Kernel-Process/Analytic",
    "computer": "",
    "security": {
      "user_id": ""
    }
  },
  "event_data": {
    "ImageBase": "0x7FF7CE4C0000",
    "ImageSize": "0x1E000",
    "ProcessID": "   12824",
    "ImageCheckSum": "  146733",
    "TimeDateStamp": "1309411976",
    "DefaultBase": "0x7FF7CE4C0000",
    "ImageName": "\\Device\\HarddiskVolume4\\Windows\\System32\\logman.exe"
  },
  "message": ""
}

Event ID 6: Process ProcessID had an image unloaded with name ImageName.

Channel: Analytic
Also via: realtime ETW trace
Level: Informational
Task: ImageUnload

Message #

Process %3 had an image unloaded with name %7.

Fields #

Name	Description
`ImageBase` Pointer
`ImageSize` Pointer
`ProcessID` UInt32
`ImageCheckSum` UInt32
`TimeDateStamp` UInt32
`DefaultBase` Pointer
`ImageName` UnicodeString

Example Event #

{
  "system": {
    "provider": "Microsoft-Windows-Kernel-Process",
    "guid": "{22fb2cd6-0e7b-422b-a0c7-2fad1fd0e716}",
    "event_source_name": "",
    "event_id": "6",
    "version": "0",
    "level": "4",
    "task": "6",
    "opcode": "0",
    "keywords": 9223372036854775872,
    "time_created": "2026-03-16T00:21:34.680221700+00:00",
    "event_record_id": 0,
    "correlation": {
      "ActivityID": "{00000000-0000-0000-0000-000000000000}"
    },
    "execution": {
      "process_id": "12260",
      "thread_id": "12100"
    },
    "channel": "Microsoft-Windows-Kernel-Process/Analytic",
    "computer": "",
    "security": {
      "user_id": ""
    }
  },
  "event_data": {
    "ImageBase": "0x7FFC81110000",
    "ImageSize": "0x34000",
    "ProcessID": "   12260",
    "ImageCheckSum": "  240996",
    "TimeDateStamp": "4066697849",
    "DefaultBase": "0x7FFC81110000",
    "ImageName": "\\Device\\HarddiskVolume4\\Windows\\System32\\ntmarta.dll"
  },
  "message": ""
}

Event ID 7: Base CPU priority of thread ThreadID in process ProcessID was changed from OldPriority to NewPriority.

Channel: Analytic
Also via: realtime ETW trace
Level: Informational
Task: CpuBasePriorityChange

Message #

Base CPU priority of thread %2 in process %1 was changed from %3 to %4.

Fields #

Name	Description
`ProcessID` UInt32
`ThreadID` UInt32
`OldPriority` UInt8
`NewPriority` UInt8

Example Event #

{
  "system": {
    "provider": "Microsoft-Windows-Kernel-Process",
    "guid": "{22fb2cd6-0e7b-422b-a0c7-2fad1fd0e716}",
    "event_source_name": "",
    "event_id": "7",
    "version": "0",
    "level": "4",
    "task": "7",
    "opcode": "0",
    "keywords": 9223372036854775936,
    "time_created": "2026-03-16T00:21:34.685256600+00:00",
    "event_record_id": 0,
    "correlation": {
      "ActivityID": "{00000000-0000-0000-0000-000000000000}"
    },
    "execution": {
      "process_id": "3668",
      "thread_id": "9620"
    },
    "channel": "Microsoft-Windows-Kernel-Process/Analytic",
    "computer": "",
    "security": {
      "user_id": ""
    }
  },
  "event_data": {
    "ProcessID": "    3668",
    "ThreadID": "    9620",
    "OldPriority": "14",
    "NewPriority": "8"
  },
  "message": ""
}

Event ID 8: CPU priority of thread ThreadID in process ProcessID was changed from OldPriority to NewPriority.

Channel: Analytic
Also via: realtime ETW trace
Level: Informational
Task: CpuPriorityChange

Message #

CPU priority of thread %2 in process %1 was changed from %3 to %4.

Fields #

Name	Description
`ProcessID` UInt32
`ThreadID` UInt32
`OldPriority` UInt8
`NewPriority` UInt8

Example Event #

{
  "system": {
    "provider": "Microsoft-Windows-Kernel-Process",
    "guid": "{22fb2cd6-0e7b-422b-a0c7-2fad1fd0e716}",
    "event_source_name": "",
    "event_id": "8",
    "version": "0",
    "level": "4",
    "task": "8",
    "opcode": "0",
    "keywords": 9223372036854775936,
    "time_created": "2026-03-16T00:21:34.751233600+00:00",
    "event_record_id": 0,
    "correlation": {
      "ActivityID": "{00000000-0000-0000-0000-000000000000}"
    },
    "execution": {
      "process_id": "4168",
      "thread_id": "6828"
    },
    "channel": "Microsoft-Windows-Kernel-Process/Analytic",
    "computer": "",
    "security": {
      "user_id": ""
    }
  },
  "event_data": {
    "ProcessID": "    4168",
    "ThreadID": "    6828",
    "OldPriority": "8",
    "NewPriority": "16"
  },
  "message": ""
}

Event ID 9: Page priority of thread ThreadID in process ProcessID was changed from OldPriority to NewPriority.

Channel: Analytic
Also via: realtime ETW trace
Level: Informational
Task: PagePriorityChange

Message #

Page priority of thread %2 in process %1 was changed from %3 to %4.

Fields #

Name	Description
`ProcessID` UInt32
`ThreadID` UInt32
`OldPriority` UInt8
`NewPriority` UInt8

Example Event #

{
  "system": {
    "provider": "Microsoft-Windows-Kernel-Process",
    "guid": "{22fb2cd6-0e7b-422b-a0c7-2fad1fd0e716}",
    "event_source_name": "",
    "event_id": "9",
    "version": "0",
    "level": "4",
    "task": "9",
    "opcode": "0",
    "keywords": 9223372036854776064,
    "time_created": "2026-03-16T00:21:34.685648100+00:00",
    "event_record_id": 0,
    "correlation": {
      "ActivityID": "{00000000-0000-0000-0000-000000000000}"
    },
    "execution": {
      "process_id": "3264",
      "thread_id": "3448"
    },
    "channel": "Microsoft-Windows-Kernel-Process/Analytic",
    "computer": "",
    "security": {
      "user_id": ""
    }
  },
  "event_data": {
    "ProcessID": "    3264",
    "ThreadID": "    3448",
    "OldPriority": "5",
    "NewPriority": "1"
  },
  "message": ""
}

Event ID 10: I/O priority of thread ThreadID in process ProcessID was changed from OldPriority to NewPriority.

Channel: Analytic
Also via: realtime ETW trace
Level: Informational
Task: IoPriorityChange

Message #

I/O priority of thread %2 in process %1 was changed from %3 to %4.

Fields #

Name	Description
`ProcessID` UInt32
`ThreadID` UInt32
`OldPriority` UInt8
`NewPriority` UInt8

Example Event #

{
  "system": {
    "provider": "Microsoft-Windows-Kernel-Process",
    "guid": "{22fb2cd6-0e7b-422b-a0c7-2fad1fd0e716}",
    "event_source_name": "",
    "event_id": "10",
    "version": "0",
    "level": "4",
    "task": "10",
    "opcode": "0",
    "keywords": 9223372036854776064,
    "time_created": "2026-03-16T00:22:35.850157400+00:00",
    "event_record_id": 0,
    "correlation": {
      "ActivityID": "{00000000-0000-0000-0000-000000000000}"
    },
    "execution": {
      "process_id": "3752",
      "thread_id": "5952"
    },
    "channel": "Microsoft-Windows-Kernel-Process/Analytic",
    "computer": "",
    "security": {
      "user_id": ""
    }
  },
  "event_data": {
    "ProcessID": "    3752",
    "ThreadID": "    5952",
    "OldPriority": "2",
    "NewPriority": "0"
  },
  "message": ""
}

Event ID 11: Execution of the process FrozenProcessID has been suspended.

Channel: Analytic
Task: ProcessFreeze
Opcode: Start

Message #

Execution of the process %1 has been suspended.

Fields #

Name	Description
`FrozenProcessID` UInt32
`CreateTime` FILETIME

Event ID 12: Execution of the process FrozenProcessID has been resumed.

Channel: Analytic
Task: ProcessFreeze
Opcode: Stop

Message #

Execution of the process %1 has been resumed.

Fields #

Name	Description
`FrozenProcessID` UInt32
`CreateTime` FILETIME

Event ID 13: Job Container ID started with status code Job ID.

Channel: Analytic
Also via: realtime ETW trace
Level: Informational
Task: JobStart
Opcode: Start

Message #

Job %1 started with status code %2.

Fields #

Name	Description
`ContainerID` GUID
`JobID` UInt32
`StatusCode` UInt32	NTSTATUS reference

Example Event #

{
  "system": {
    "provider": "Microsoft-Windows-Kernel-Process",
    "guid": "{22fb2cd6-0e7b-422b-a0c7-2fad1fd0e716}",
    "event_source_name": "",
    "event_id": "13",
    "version": "0",
    "level": "4",
    "task": "13",
    "opcode": "1",
    "keywords": 9223372036854776832,
    "time_created": "2026-03-16T00:22:30.860225400+00:00",
    "event_record_id": 0,
    "correlation": {
      "ActivityID": "{00000000-0000-0000-0000-000000000000}"
    },
    "execution": {
      "process_id": "7124",
      "thread_id": "4244"
    },
    "channel": "Microsoft-Windows-Kernel-Process/Analytic",
    "computer": "",
    "security": {
      "user_id": ""
    }
  },
  "event_data": {
    "Container ID": "{b0b7d412-20cb-11f1-9fbf-00155d284e57}",
    "Job ID": "     880",
    "StatusCode": "       0"
  },
  "message": ""
}

Example keys not documented in the fields table: Container ID, Job ID

Event ID 14: Job Container ID terminated with status code Job ID.

Channel: Analytic
Also via: realtime ETW trace
Level: Informational
Task: JobTerminate
Opcode: Stop

Message #

Job %1 terminated with status code %2.

Fields #

Name	Description
`ContainerID` GUID
`JobID` UInt32
`StatusCode` UInt32	NTSTATUS reference

Example Event #

{
  "system": {
    "provider": "Microsoft-Windows-Kernel-Process",
    "guid": "{22fb2cd6-0e7b-422b-a0c7-2fad1fd0e716}",
    "event_source_name": "",
    "event_id": "14",
    "version": "0",
    "level": "4",
    "task": "14",
    "opcode": "2",
    "keywords": 9223372036854776832,
    "time_created": "2026-03-16T00:21:38.751901900+00:00",
    "event_record_id": 0,
    "correlation": {
      "ActivityID": "{00000000-0000-0000-0000-000000000000}"
    },
    "execution": {
      "process_id": "10736",
      "thread_id": "12560"
    },
    "channel": "Microsoft-Windows-Kernel-Process/Analytic",
    "computer": "",
    "security": {
      "user_id": ""
    }
  },
  "event_data": {
    "Container ID": "{b0b7d3db-20cb-11f1-9fbf-00155d284e57}",
    "Job ID": "     856",
    "StatusCode": "       0"
  },
  "message": ""
}

Example keys not documented in the fields table: Container ID, Job ID

Event ID 15: Enumerated process ProcessID had started at time ProcessSequenceNumber by parent CreateTime running in session ParentProcessID with name SessionID.

Channel: Analytic
Task: ProcessRundown

Message #

Enumerated process %1 had started at time %2 by parent %3 running in session %4 with name %6.

Fields #

Name	Description
`ProcessID` UInt32
`ProcessSequenceNumber` UInt64
`CreateTime` FILETIME
`ParentProcessID` UInt32
`ParentProcessSequenceNumber` UInt64
`SessionID` UInt32
`Flags` UInt32
`ProcessTokenElevationType` UInt32
`ProcessTokenIsElevated` UInt32
`MandatoryLabel` SID
`ImageName` UnicodeString
`ImageChecksum` UInt32
`TimeDateStamp` UInt32
`PackageFullName` UnicodeString
`PackageRelativeAppId` UnicodeString
`SecurityMitigations` UInt32

Event ID 16: task_0

Channel: Operational
Opcode: Info

Event ID 17: PsDiskIoAttributionStart

Channel: Analytic
Task: PsDiskIoAttribution
Opcode: Start

Fields #

Name	Description
`JobID` UInt32
`DiskIoAttribution` Pointer
`StatusCode` UInt32	NTSTATUS reference

Event ID 18: PsDiskIoAttributionStop

Channel: Analytic
Task: PsDiskIoAttribution
Opcode: Stop

Fields #

Name	Description
`JobID` UInt32
`DiskIoAttribution` Pointer
`StatusCode` UInt32	NTSTATUS reference

Event ID 19: PsIoRateControlStart_V2

Channel: Analytic
Task: PsIoRateControl
Opcode: Start

Fields #

Name	Description
`JobID` UInt32
`IoRateControl` Pointer
`MaxIops` UInt64
`MaxBandwidth` UInt64
`MaxTimePercent` UInt64
`ReservationIops` UInt64
`ReservationBandwidth` UInt64
`ReservationTimePercent` UInt64
`CriticalReservationIops` UInt64
`CriticalReservationBandwidth` UInt64
`CriticalReservationTimePercent` UInt64
`SoftMaxIops` UInt64
`SoftMaxBandwidth` UInt64
`SoftMaxTimePercent` UInt64
`ControlFlags` UInt32
`VolumeName` UnicodeString
`StatusCode` UInt32	NTSTATUS reference

Event ID 20: PsIoRateControlStop_V2

Channel: Analytic
Task: PsIoRateControl
Opcode: Stop

Fields #

Name	Description
`JobID` UInt32
`IoRateControl` Pointer
`MaxIops` UInt64
`MaxBandwidth` UInt64
`MaxTimePercent` UInt64
`ReservationIops` UInt64
`ReservationBandwidth` UInt64
`ReservationTimePercent` UInt64
`CriticalReservationIops` UInt64
`CriticalReservationBandwidth` UInt64
`CriticalReservationTimePercent` UInt64
`SoftMaxIops` UInt64
`SoftMaxBandwidth` UInt64
`SoftMaxTimePercent` UInt64
`ControlFlags` UInt32
`VolumeName` UnicodeString
`StatusCode` UInt32	NTSTATUS reference

Event ID 21: ThreadWorkOnBehalfUpdate

Channel: Analytic
Also via: realtime ETW trace
Level: Informational
Task: ThreadWorkOnBehalfUpdate

Fields #

Name	Description
`OldWorkOnBehalfThreadID` UInt32
`NewWorkOnBehalfThreadID` UInt32

Example Event #

{
  "system": {
    "provider": "Microsoft-Windows-Kernel-Process",
    "guid": "{22fb2cd6-0e7b-422b-a0c7-2fad1fd0e716}",
    "event_source_name": "",
    "event_id": "21",
    "version": "0",
    "level": "4",
    "task": "18",
    "opcode": "0",
    "keywords": 9223372036854784000,
    "time_created": "2026-03-16T00:21:34.678731600+00:00",
    "event_record_id": 0,
    "correlation": {
      "ActivityID": "{00000000-0000-0000-0000-000000000000}"
    },
    "execution": {
      "process_id": "1356",
      "thread_id": "12108"
    },
    "channel": "Microsoft-Windows-Kernel-Process/Analytic",
    "computer": "",
    "security": {
      "user_id": ""
    }
  },
  "event_data": {
    "OldWorkOnBehalfThreadID": "       0",
    "NewWorkOnBehalfThreadID": "   12100"
  },
  "message": ""
}

Event ID 22: JobServerSiloStart

Channel: Analytic
Task: JobServerSiloStateChange

Fields #

Name	Description
`ContainerID` GUID
`JobID` UInt32
`State` UInt16

Event ID 23: JobServerSiloStart23

Channel: Analytic
Task: ServerSiloCreateCallback
Opcode: Start

Fields #

Name	Description
`ContainerID` GUID
`JobID` UInt32
`MonitorName` UnicodeString

Event ID 24: JobServerSiloStartStop

Channel: Analytic
Task: ServerSiloCreateCallback
Opcode: Stop

Fields #

Name	Description
`ContainerID` GUID
`JobID` UInt32
`Status` UInt32	NTSTATUS reference
`MonitorName` UnicodeString

Event ID 25: JobServerSiloStart25

Channel: Analytic
Task: ServerSiloTerminateCallback
Opcode: Start

Fields #

Name	Description
`ContainerID` GUID
`JobID` UInt32
`MonitorName` UnicodeString

Event ID 26: JobServerSiloStartStop26

Channel: Analytic
Task: ServerSiloTerminateCallback
Opcode: Stop

Fields #

Name	Description
`ContainerID` GUID
`JobID` UInt32
`MonitorName` UnicodeString

Event ID 27: ProcessInPrivateSet

Channel: Analytic
Task: ProcessInPrivateSet

Fields #

Name	Description
`ProcessName` UnicodeString
`ProcessID` UInt32

Provenance

ETW provider GUID {22FB2CD6-0E7B-422B-A0C7-2FAD1FD0E716}

Defined in Microsoft-Windows-System-Events.dll, which carries the event manifest.

WS2022-20348.4893, sample captured from a live trace, binary version 10.0.20348.3932, captured 2026-06-02 — Manifest XML pack, 1.9 MB
Win11-26200.6584, sample captured from a live trace, binary version 10.0.26100.5074, captured 2026-06-02 — Manifest XML pack, 2.0 MB
WS2022-20348.4893, schema read from the registered manifest, binary version 10.0.20348.3932, captured 2026-06-02 — Manifest XML pack, 1.9 MB
Win11-26200.6584, schema read from the registered manifest, binary version 10.0.26100.5074, captured 2026-06-02 — Manifest XML pack, 2.0 MB