Windows Security Log Event ID 4666

Operating Systems Windows 2008 R2 and 7
Windows 2012 R2 and 8.1
Windows 2016 and 10
Windows Server 2019 and 2022
 • Subcategory
Object Access
 • Application Generated
Type Success
Corresponding events
in Windows 2003
and before
Discussions on Event ID 4666
i got the raw event for this. Please update the same in the event details.

4666: An application attempted an operation

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Description Fields in 4666


  •    Client Name:  %5
  •    Client Domain:  %6
  •    Client Context ID: %7


  •    Object Name:  %3
  •    Scope Names:  %4

Application Information:

  •    Application Name: %1
  •    Application Instance ID: %2

Access Request Information:

  •    Role:   %8
  •    Groups:   %9
  •    Operation Name: %10 (%11)

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Examples of 4666

An application attempted an operation:

  Client Name: Administrator
  Client Domain: MOM
  Client Context ID: 615654731

  Object Name: GetConnectorsByCriteria
  Scope Names: d5f04262-5efe-43cf-914c-3c1ea37a6529

Application Information:
  Application Name: Microsoft Operations Manager
  Application Instance ID: 302660

Access Request Information:
  Role: Role
  Groups: Group
  Operation Name: Connector__Get (14)

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