Microsoft-Windows-SpellChecker

35 events across 2 channels

Event	Title	Channel	Sample
1	Add word start	Analytic	N
2	Add word complete	Analytic	N
3	Check start	Analytic	N
4	Check complete	Analytic	N
5	Create SpellChecker start	Analytic	N
6	Create SpellChecker complete	Analytic	N
7	Suggest start	Analytic	N
8	Suggest complete	Analytic	N
9	EnumSpellingError Next Start	Analytic	N
10	EnumSpellingError Next Stop	Analytic	N
11	SupportedLanguages complete	Analytic	N
12	SupportedLanguages start	Analytic	N
13	Csapi Suggest start	Analytic	N
14	Csapi Suggest Complete	Analytic	N
15	Csapi Check Start	Analytic	N
16	Csapi Check complete	Analytic	N
17	Csapi Add word start	Analytic	N
18	Csapi Add Word complete	Analytic	N
19	Csapi Initialize SpellChecker start	Analytic	N
20	Csapi Initialize SpellChecker complete	Analytic	N
21	Csapi open lexicon start	Analytic	N
22	Csapi OpenLexicon complete	Analytic	N
23	Csapi Get options start	Analytic	N
24	Csapi Get options complete	Analytic	N
25	Csapi Set options start	Analytic	N
26	Csapi Set options complete	Analytic	N
27	Csapi terminate spell checker start	Analytic	N
28	Csapi terminate spell checker complete	Analytic	N
29	Csapi close lexicon start	Analytic	N
30	Csapi close lexicon complete	Analytic	N
31	EnumOptionDescription next OptionDescription start	Analytic	N
32	EnumOptionDescription next OptionDescription stop	Analytic	N
33	Failed to add hardcoded change pair "First -> Second" to engine: hr.	Application	N
34	Comprehensive check start	Analytic	N
35	Comprehensive check complete	Analytic	N

Event ID 1: Add word start

Provider: Microsoft-Windows-SpellChecker
Channel: Analytic
Task: ModifyWordlist
Opcode: Start

Description

Add word start.

Message #

Add word start

Fields #

Name	Description
`WordlistType` UInt32

Event ID 2: Add word complete

Provider: Microsoft-Windows-SpellChecker
Channel: Analytic
Task: ModifyWordlist
Opcode: Stop

Description

Add word complete.

Message #

Add word complete

Fields #

Name	Description
`WordlistType` UInt32

Event ID 3: Check start

Provider: Microsoft-Windows-SpellChecker
Channel: Analytic
Task: Checkspelling
Opcode: Start

Description

Check start.

Message #

Check start

Event ID 4: Check complete

Provider: Microsoft-Windows-SpellChecker
Channel: Analytic
Task: Checkspelling
Opcode: Stop

Description

Check complete.

Message #

Check complete

Event ID 5: Create SpellChecker start

Provider: Microsoft-Windows-SpellChecker
Channel: Analytic
Task: Setup
Opcode: Start

Description

Create SpellChecker start.

Message #

Create SpellChecker start

Event ID 6: Create SpellChecker complete

Provider: Microsoft-Windows-SpellChecker
Channel: Analytic
Task: Setup
Opcode: Stop

Description

Create SpellChecker complete.

Message #

Create SpellChecker complete

Event ID 7: Suggest start

Provider: Microsoft-Windows-SpellChecker
Channel: Analytic
Task: GetSuggestions
Opcode: Start

Description

Suggest start.

Message #

Suggest start

Event ID 8: Suggest complete

Provider: Microsoft-Windows-SpellChecker
Channel: Analytic
Task: GetSuggestions
Opcode: Stop

Description

Suggest complete.

Message #

Suggest complete

Event ID 9: EnumSpellingError Next Start

Provider: Microsoft-Windows-SpellChecker
Channel: Analytic
Task: Checkspelling
Opcode: Start

Description

EnumSpellingError Next Start.

Message #

EnumSpellingError Next Start

Event ID 10: EnumSpellingError Next Stop

Provider: Microsoft-Windows-SpellChecker
Channel: Analytic
Task: Checkspelling
Opcode: Stop

Description

EnumSpellingError Next Stop.

Message #

EnumSpellingError Next Stop

Event ID 11: SupportedLanguages complete

Provider: Microsoft-Windows-SpellChecker
Channel: Analytic
Opcode: Start

Description

SupportedLanguages complete.

Message #

SupportedLanguages complete

Event ID 12: SupportedLanguages start

Provider: Microsoft-Windows-SpellChecker
Channel: Analytic
Opcode: Stop

Description

SupportedLanguages start.

Message #

SupportedLanguages start

Event ID 13: Csapi Suggest start

Provider: Microsoft-Windows-SpellChecker
Channel: Analytic
Task: GetSuggestions
Opcode: Start

Description

Csapi Suggest start.

Message #

Csapi Suggest start

Event ID 14: Csapi Suggest Complete

Provider: Microsoft-Windows-SpellChecker
Channel: Analytic
Task: GetSuggestions
Opcode: Stop

Description

Csapi Suggest Complete.

Message #

Csapi Suggest Complete

Event ID 15: Csapi Check Start

Provider: Microsoft-Windows-SpellChecker
Channel: Analytic
Task: Checkspelling
Opcode: Start

Description

Csapi Check Start.

Message #

Csapi Check Start

Event ID 16: Csapi Check complete

Provider: Microsoft-Windows-SpellChecker
Channel: Analytic
Task: Checkspelling
Opcode: Stop

Description

Csapi Check complete.

Message #

Csapi Check complete

Event ID 17: Csapi Add word start

Provider: Microsoft-Windows-SpellChecker
Channel: Analytic
Task: ModifyWordlist
Opcode: Start

Description

Csapi Add word start.

Message #

Csapi Add word start

Event ID 18: Csapi Add Word complete

Provider: Microsoft-Windows-SpellChecker
Channel: Analytic
Task: ModifyWordlist
Opcode: Stop

Description

Csapi Add Word complete.

Message #

Csapi Add Word complete

Event ID 19: Csapi Initialize SpellChecker start

Provider: Microsoft-Windows-SpellChecker
Channel: Analytic
Task: Setup
Opcode: Start

Description

Csapi Initialize SpellChecker start.

Message #

Csapi Initialize SpellChecker start

Event ID 20: Csapi Initialize SpellChecker complete

Provider: Microsoft-Windows-SpellChecker
Channel: Analytic
Task: Setup
Opcode: Stop

Description

Csapi Initialize SpellChecker complete.

Message #

Csapi Initialize SpellChecker complete

Event ID 21: Csapi open lexicon start

Provider: Microsoft-Windows-SpellChecker
Channel: Analytic
Task: Setup
Opcode: Start

Description

Csapi open lexicon start.

Message #

Csapi open lexicon start

Event ID 22: Csapi OpenLexicon complete

Provider: Microsoft-Windows-SpellChecker
Channel: Analytic
Task: Setup
Opcode: Stop

Description

Csapi OpenLexicon complete.

Message #

Csapi OpenLexicon complete

Event ID 23: Csapi Get options start

Provider: Microsoft-Windows-SpellChecker
Channel: Analytic
Task: SettingandGettingOptions
Opcode: Start

Description

Csapi Get options start.

Message #

Csapi Get options start

Event ID 24: Csapi Get options complete

Provider: Microsoft-Windows-SpellChecker
Channel: Analytic
Task: SettingandGettingOptions
Opcode: Stop

Description

Csapi Get options complete.

Message #

Csapi Get options complete

Event ID 25: Csapi Set options start

Provider: Microsoft-Windows-SpellChecker
Channel: Analytic
Task: SettingandGettingOptions
Opcode: Start

Description

Csapi Set options start.

Message #

Csapi Set options start

Event ID 26: Csapi Set options complete

Provider: Microsoft-Windows-SpellChecker
Channel: Analytic
Task: SettingandGettingOptions
Opcode: Stop

Description

Csapi Set options complete.

Message #

Csapi Set options complete

Event ID 27: Csapi terminate spell checker start

Provider: Microsoft-Windows-SpellChecker
Channel: Analytic
Task: Teardown
Opcode: Start

Description

Csapi terminate spell checker start.

Message #

Csapi terminate spell checker start

Event ID 28: Csapi terminate spell checker complete

Provider: Microsoft-Windows-SpellChecker
Channel: Analytic
Task: Teardown
Opcode: Stop

Description

Csapi terminate spell checker complete.

Message #

Csapi terminate spell checker complete

Event ID 29: Csapi close lexicon start

Provider: Microsoft-Windows-SpellChecker
Channel: Analytic
Task: Teardown
Opcode: Start

Description

Csapi close lexicon start.

Message #

Csapi close lexicon start

Event ID 30: Csapi close lexicon complete

Provider: Microsoft-Windows-SpellChecker
Channel: Analytic
Task: Teardown
Opcode: Stop

Description

Csapi close lexicon complete.

Message #

Csapi close lexicon complete

Event ID 31: EnumOptionDescription next OptionDescription start

Provider: Microsoft-Windows-SpellChecker
Channel: Analytic
Task: SettingandGettingOptions
Opcode: Start

Description

EnumOptionDescription next OptionDescription start.

Message #

EnumOptionDescription next OptionDescription start

Event ID 32: EnumOptionDescription next OptionDescription stop

Provider: Microsoft-Windows-SpellChecker
Channel: Analytic
Task: SettingandGettingOptions
Opcode: Stop

Description

EnumOptionDescription next OptionDescription stop.

Message #

EnumOptionDescription next OptionDescription stop

Event ID 33: Failed to add hardcoded change pair "First -> Second" to engine: hr.

Provider: Microsoft-Windows-SpellChecker
Channel: Application
Task: Setup

Description

Failed to add hardcoded change pair "First -> Second" to engine: hr. The spell checker will still be available.

Message #

Failed to add hardcoded change pair "%1 -> %2" to engine: %3. The spell checker will still be available.

Fields #

Name	Description
`First` UnicodeString
`Second` UnicodeString
`hr` Int32

Event ID 34: Comprehensive check start

Provider: Microsoft-Windows-SpellChecker
Channel: Analytic
Task: Checkspelling
Opcode: Start

Description

Comprehensive check start.

Message #

Comprehensive check start

Event ID 35: Comprehensive check complete

Provider: Microsoft-Windows-SpellChecker
Channel: Analytic
Task: Checkspelling
Opcode: Stop

Description

Comprehensive check complete.

Message #

Comprehensive check complete

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 b2fcd41f-9a40-4150-8c92-b224b7d8c8aa

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

Observed on:

WS2022-20348.4893, schema read from the registered manifest, binary version 10.0.20348.1, captured 2026-06-02
Win11-26200.6584, schema read from the registered manifest, binary version 10.0.26100.1, captured 2026-06-02

`j` / `k`	Scroll down / up
`d` / `u`	Half-page down / up
`gg` / `G`	Top / bottom
`h` / `l`	History back / forward
`f`	Follow link (`Shift` = new tab)
`/`	Focus search
`?`	Toggle this help
`↑` / `↓`	Navigate search results
`Enter`	Open highlighted result
`Esc`	Close results / dialog

`type:`	`events` / `rules` / `providers`
`vendor:`	`sigma` / `elastic` / `splunk` / `kusto` / `chronicle` (vendor name alone also works: `sigma:`, `kql:`, `secops:`…)
`tactic:`	TA-id, slug, or name: `credential_access`, `TA0006`
`technique:`	technique or sub-technique ID: `T1003`, `T1003.001` (alias `tech:`)
`severity:`	`critical` / `high` / `medium` / `low` / `informational` (alias `sev:`)
`risk_score`	Numeric comparison on the Elastic risk score (0 to 100): `risk_score>50`, `risk_score<=20`, `risk_score=99` (alias `risk`; Elastic rules only)
`stages:`	Rules with exactly N pipeline stages
`correlation:`	`single_event` / `sequence` / `alternatives` / `alternatives_cross_log` / `all_required` / `correlated`
`with:`	Co-occurrence event-id; stacks (`with:4624 with:4769`) to require all, while a comma list in one occurrence (`with:4624,4769`) is an either-or group. Implies multi-event
`like:`	Structural neighbors of a rule slug (equivalents + subsumption stricter / broader): `like:comsvcs_lsass_memory_dump-splunk-sysmon`
`groupby:`	Entity-grouping substring match against `group_by_keys`: `groupby:user`, `groupby:host`
`uses:`	Rules whose predicate tree touches the field (any kind, any value): `uses:CommandLine`
`excludes:`	Rules with top-level `not()` clauses on the field (FP whitelists): `excludes:ParentImage`
`field:` / `value:`	Predicate search; narrows rule cards to those with a matching leaf and drives the indicator tier. Unquoted = substring, wildcards allowed (`value:mimikatz`)
`indicator:`	Shorthand for `field:F value:V`: `indicator:Image=*\powershell.exe`
`kind:`	Filter by predicate kind. Narrows rule cards to those carrying a matching predicate leaf (`vendor:elastic kind:cidr_match`) and drives the indicator tier: `contains` / `starts_with` / `ends_with` / `regex` / `cidr` / `eq` / `in` … (operator aliases `op:`/`match:`)
`has:` / `no:`	`sample`, `field`, `notes`, `refs`, `trace`, `thirdparty`, `rule`, `pattern`, `timewindow`, `threshold`, `newterms`, `sigma`/`elastic`/`splunk`/`kusto`/`chronicle`
`-op:val`	Exclude matches; works on most operators but not `type:`/`like:`/`has:`/`no:` (use `no:<flag>` to exclude a rule flag): `tactic:execution -vendor:splunk`. Standalone `-kind:`/`-field:`/`-value:` drop every rule carrying a matching predicate leaf (`type:rules -kind:is_null`)
`field:"…"` / `value:"…"`	Quoted value = anchored exact match (also allows spaces): `value:"net user"`
`a,b`	Comma = OR inside one operator (`vendor:sigma,elastic`, `severity:high,critical`); repeating a facet merges the same way. `field:`/`value:` never split (literal commas)
`vendors:` / `stage:`	Singular and plural spellings fold to the canonical operator and value: `tactics:` = `tactic:`, `type:event` = `type:events`, `correlation:sequences` = `correlation:sequence`, `has:thresholds` = `has:threshold`
`"quoted phrase"`	Exact-match a multi-word phrase (free text)