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# Event Processing Configuration Parameters

The `[EventProcessing]` section of the configuration file contains the names of the Event Stream Processing (ESP) tasks that you want to run. ESP engines extract meaningful events from tracks produced by other engines.

Use the `EventProcessingEngineN` parameter to specify the names of the tasks.

You can specify multiple tasks by using a comma-separated list of names:

    [EventProcessing]
    EventProcessingEngine=OrTask,DeduplicateTask

Alternatively, you can use numbered parameters. Use a unique number for each task, starting from zero (0) and increasing by one each time:

    [EventProcessing]
    EventProcessingEngine0=OrTask
    EventProcessingEngine1=DeduplicateTask

NOTE:

Task names cannot include any of the following characters:

- period (`.`)
- comma (`,`)
- colon (`:`)
- semicolon (`;`)
- asterisk (`*`)
- equals sign (`=`)

After specifying the names of the sections, you can set parameters to configure the tasks:

    [OrTask]
    Type=Or
    Input0=MyFirstTask.Data
    Input1=MySecondTask.Data

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