The optional data field, if used, contains binary data which can be displayed in bytes or words. This information is generated by the application that was the source of the event record. Because the data appears in hexadecimal format, its meaning can be interpreted only by someone who is familiar with the source application.
You determine which event log to view by switching between the system, security, and application logs. You also can use Event Viewer to view logs on other computers.
This section discusses the following topics: