Get event data from event triggered task

• Create task
• Export task into XML
• Add the following: into Task/Triggers/EventTrigger

<ValueQueries>
  <Value name="User">Event/EventData/Data[@Name='TargetUserName']</Value>
  <Value name="Computer">Event/EventData/Data[@Name='TargetDomainName']</Value>
</ValueQueries>

• Reimport the task
• Use $(User) and $(Computer) as variable names