Microsoft-AppV-Client-StreamingUX

27 events across 1 channel

Event	Title	Channel	Sample
1	An attempt to create the streaming UX process failed.	Debug	N
2	The streaming ux process was created successfully.	Debug	N
3	Stopping the streaming ux process.	Debug	N
4	An attempt to stop the streaming ux process failed.	Debug	N
5	The streaming ux process is being created with CreateProcess.	Debug	N
6	The streaming ux process is being created with CreateProcessAsUser.	Debug	N
9	An attempt to stop the data retrieval thread failed.	Debug	N
20	An attempt to create the data retrieval stop event failed.	Debug	N
21	An attempt to create the thread for performance counter data retrieval failed.	Debug	N
40	The current performance counter query state is invalid.	Debug	N
41	An attempt to open a live performance counter query failed.	Debug	N
42	An attempt to add a performance counter to the query failed.	Debug	N
43	An attempt to collect query data failed.	Debug	N
44	An attempt to get the raw counter value failed.	Debug	N
45	An attempt to get the formatted counter values failed.	Debug	N
60	Package with ID packageId and versionId versionId is being loaded.	Debug	N
61	Package with ID packageId and versionId versionId percentage of FB1 downloaded …	Debug	N
80	An attempt to launch the process is the current user's sesssion failed.	Debug	N
100	An instance of AppVStreamingUX.	Debug	N
101	AppVStreamingUX.	Debug	N
102	An attempt to set the appropriate security on the AppVStreamingUX mutex failed.	Debug	N
120	Deimpersonation for data retrieval failed.	Debug	N
121	Reimpersonation for data retrieval failed.	Debug	N
122	An attempt to start data retrieval failed.	Debug	N
123	Data retrieval for performance counter data was started successfully.	Debug	N
140	AppVClientUX.	Debug	N
150	Publishing refresh status changed.	Debug	N

Event ID 1: An attempt to create the streaming UX process failed.

Provider: Microsoft-AppV-Client-StreamingUX
Channel: Debug

Description

An attempt to create the streaming UX process failed. Path = astring ErrorCode = uint64.

Message #

An attempt to create the streaming UX process failed. Path = %1 ErrorCode = %2

Fields #

Name	Description
`astring` UnicodeString
`uint64` UInt64

Event ID 2: The streaming ux process was created successfully.

Provider: Microsoft-AppV-Client-StreamingUX
Channel: Debug

Description

The streaming ux process was created successfully. Path = astring Pid = uint64.

Message #

The streaming ux process was created successfully. Path = %1 Pid = %2

Fields #

Name	Description
`astring` UnicodeString
`uint64` UInt64

Event ID 3: Stopping the streaming ux process.

Provider: Microsoft-AppV-Client-StreamingUX
Channel: Debug

Description

Stopping the streaming ux process. Pid = unint64.

Message #

Stopping the streaming ux process. Pid = %1

Fields #

Name	Description
`unint64` UInt64

Event ID 4: An attempt to stop the streaming ux process failed.

Provider: Microsoft-AppV-Client-StreamingUX
Channel: Debug

Description

An attempt to stop the streaming ux process failed. Pid = unint64 ErrorCode = uint642.

Message #

An attempt to stop the streaming ux process failed. Pid = %1 ErrorCode = %2

Fields #

Name	Description
`unint64` UInt64
`uint642` UInt64

Event ID 5: The streaming ux process is being created with CreateProcess.

Provider: Microsoft-AppV-Client-StreamingUX
Channel: Debug

Description

The streaming ux process is being created with CreateProcess. Path = astring.

Message #

The streaming ux process is being created with CreateProcess. Path = %1

Fields #

Name	Description
`astring` UnicodeString

Event ID 6: The streaming ux process is being created with CreateProcessAsUser.

Provider: Microsoft-AppV-Client-StreamingUX
Channel: Debug

Description

The streaming ux process is being created with CreateProcessAsUser. Path = astring.

Message #

The streaming ux process is being created with CreateProcessAsUser. Path = %1

Fields #

Name	Description
`astring` UnicodeString

Event ID 9: An attempt to stop the data retrieval thread failed.

Provider: Microsoft-AppV-Client-StreamingUX
Channel: Debug

Description

An attempt to stop the data retrieval thread failed. ErrorCode = param1.

Message #

An attempt to stop the data retrieval thread failed. ErrorCode = %1

Fields #

Name	Description
`param1`

Event ID 20: An attempt to create the data retrieval stop event failed.

Provider: Microsoft-AppV-Client-StreamingUX
Channel: Debug

Description

An attempt to create the data retrieval stop event failed. ErrorCode = unint64.

Message #

An attempt to create the data retrieval stop event failed. ErrorCode = %1

Fields #

Name	Description
`unint64` UInt64

Event ID 21: An attempt to create the thread for performance counter data retrieval failed.

Provider: Microsoft-AppV-Client-StreamingUX
Channel: Debug

Description

An attempt to create the thread for performance counter data retrieval failed. ErrorCode = unint64.

Message #

An attempt to create the thread for performance counter data retrieval failed. ErrorCode = %1

Fields #

Name	Description
`unint64` UInt64

Event ID 40: The current performance counter query state is invalid.

Provider: Microsoft-AppV-Client-StreamingUX
Channel: Debug

Description

The current performance counter query state is invalid. ErrorCode = unint64.

Message #

The current performance counter query state is invalid. ErrorCode = %1

Fields #

Name	Description
`unint64` UInt64

Event ID 41: An attempt to open a live performance counter query failed.

Provider: Microsoft-AppV-Client-StreamingUX
Channel: Debug

Description

An attempt to open a live performance counter query failed. ErrorCode = unint64.

Message #

An attempt to open a live performance counter query failed. ErrorCode = %1

Fields #

Name	Description
`unint64` UInt64

Event ID 42: An attempt to add a performance counter to the query failed.

Provider: Microsoft-AppV-Client-StreamingUX
Channel: Debug

Description

An attempt to add a performance counter to the query failed. CounterPath = astring ErrorCode = uint64.

Message #

An attempt to add a performance counter to the query failed. CounterPath = %1 ErrorCode = %2

Fields #

Name	Description
`astring` UnicodeString
`uint64` UInt64

Event ID 43: An attempt to collect query data failed.

Provider: Microsoft-AppV-Client-StreamingUX
Channel: Debug

Description

An attempt to collect query data failed. ErrorCode = unint64.

Message #

An attempt to collect query data failed. ErrorCode = %1

Fields #

Name	Description
`unint64` UInt64

Event ID 44: An attempt to get the raw counter value failed.

Provider: Microsoft-AppV-Client-StreamingUX
Channel: Debug

Description

An attempt to get the raw counter value failed. ErrorCode = unint64.

Message #

An attempt to get the raw counter value failed. ErrorCode = %1

Fields #

Name	Description
`unint64` UInt64

Event ID 45: An attempt to get the formatted counter values failed.

Provider: Microsoft-AppV-Client-StreamingUX
Channel: Debug

Description

An attempt to get the formatted counter values failed. ErrorCode = unint64.

Message #

An attempt to get the formatted counter values failed. ErrorCode = %1

Fields #

Name	Description
`unint64` UInt64

Event ID 60: Package with ID packageId and versionId versionId is being loaded.

Provider: Microsoft-AppV-Client-StreamingUX
Channel: Debug

Description

Package with ID packageId and versionId versionId is being loaded.

Message #

Package with ID %1 and versionId %2 is being loaded.

Fields #

Name	Description
`packageId` GUID
`versionId` GUID

Event ID 61: Package with ID packageId and versionId versionId percentage of FB1 downloaded is now percentageComplete.

Provider: Microsoft-AppV-Client-StreamingUX
Channel: Debug

Description

Package with ID packageId and versionId versionId percentage of FB1 downloaded is now percentageComplete.

Message #

Package with ID %1 and versionId %2 percentage of FB1 downloaded is now %3.

Fields #

Name	Description
`packageId` GUID
`versionId` GUID
`percentageComplete` UInt64

Event ID 80: An attempt to launch the process is the current user's sesssion failed.

Provider: Microsoft-AppV-Client-StreamingUX
Channel: Debug

Description

An attempt to launch the process is the current user's sesssion failed. ErrorCode = unint64.

Message #

An attempt to launch the process is the current user's sesssion failed. ErrorCode = %1

Fields #

Name	Description
`unint64` UInt64

Event ID 100: An instance of AppVStreamingUX.

Provider: Microsoft-AppV-Client-StreamingUX
Channel: Debug

Description

An instance of AppVStreamingUX.exe is already running for this user.

Message #

An instance of AppVStreamingUX.exe is already running for this user.

Event ID 101: AppVStreamingUX.

Provider: Microsoft-AppV-Client-StreamingUX
Channel: Debug

Description

AppVStreamingUX.exe was unable to register itself for application restart. ErrorCode = uint32.

Message #

AppVStreamingUX.exe was unable to register itself for application restart. ErrorCode = %1

Fields #

Name	Description
`uint32` UInt32

Event ID 102: An attempt to set the appropriate security on the AppVStreamingUX mutex failed.

Provider: Microsoft-AppV-Client-StreamingUX
Channel: Debug

Description

An attempt to set the appropriate security on the AppVStreamingUX mutex failed. Exception: astring.

Message #

An attempt to set the appropriate security on the AppVStreamingUX mutex failed. Exception: %1

Fields #

Name	Description
`astring` UnicodeString

Event ID 120: Deimpersonation for data retrieval failed.

Provider: Microsoft-AppV-Client-StreamingUX
Channel: Debug

Description

Deimpersonation for data retrieval failed. Streaming UX notifications are inactive. ErrorCode = unint64.

Message #

Deimpersonation for data retrieval failed. Streaming UX notifications are inactive. ErrorCode = %1

Fields #

Name	Description
`unint64` UInt64

Event ID 121: Reimpersonation for data retrieval failed.

Provider: Microsoft-AppV-Client-StreamingUX
Channel: Debug

Description

Reimpersonation for data retrieval failed. Streaming UX notifications are inactive. ErrorCode = unint64.

Message #

Reimpersonation for data retrieval failed. Streaming UX notifications are inactive. ErrorCode = %1

Fields #

Name	Description
`unint64` UInt64

Event ID 122: An attempt to start data retrieval failed.

Provider: Microsoft-AppV-Client-StreamingUX
Channel: Debug

Description

An attempt to start data retrieval failed. Streaming UX notifications are inactive. ErrorCode = unint64.

Message #

An attempt to start data retrieval failed. Streaming UX notifications are inactive. ErrorCode = %1

Fields #

Name	Description
`unint64` UInt64

Event ID 123: Data retrieval for performance counter data was started successfully.

Provider: Microsoft-AppV-Client-StreamingUX
Channel: Debug

Description

Data retrieval for performance counter data was started successfully.

Message #

Data retrieval for performance counter data was started successfully.

Event ID 140: AppVClientUX.

Provider: Microsoft-AppV-Client-StreamingUX
Channel: Debug

Description

AppVClientUX.exe failed to launch from the streaming ux.

Message #

AppVClientUX.exe failed to launch from the streaming ux.

Event ID 150: Publishing refresh status changed.

Provider: Microsoft-AppV-Client-StreamingUX
Channel: Debug

Description

Publishing refresh status changed.

Message #

Publishing refresh status changed:
 Server: %1
 Global: %2
 Packages: Total %3, Succeeded %4, Failed %5
 Groups: Total %6, Succeeded %7, Failed %8.

Fields #

Name	Description
`server` UnicodeString
`global` Boolean
`packageTotal` UInt32
`packageSucceeded` UInt32
`packageFailed` UInt32
`groupTotal` UInt32
`groupSucceeded` UInt32
`groupFailed` UInt32

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 28cb46c7-4003-4e50-8bd9-442086762d12

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

Observed on:

WS2022-20348.4893, schema read from the registered manifest, binary version 10.0.20348.2849, captured 2026-06-02
Win11-26200.6584, schema read from the registered manifest, binary version 10.0.26100.1882, 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)