Altering the .config file will affect the operation of the application and should only be undertaken by an administrator
This specifies which applications (known as listeners) are notified whenever a printer changed event occurs. This could be a change in the printer setup, status or number of jobs waiting to be printed.
The format of the section is:
Each listener is identified by a unique key.
The classType property identifies the application that implements the listener.
The commandLine property is the start-up settings passed to the lsitener
In the above example a listener called printerEventFileListener is created by the application assembly PrinterMonitorService.PrinterMonitorLogfileListener and is passed command line parameter d:\Temp\PrinterEvents.log to specify where it should store the information it is passed
For more information about writing customised listeners please see the developer documentation