Event-o-Pedia EventID 516 - Internal resources allocated for the queuing of audit messages have been exhausted, leading to the loss of some audits

	Event Details
	Operating System->Microsoft Windows->Built-in logs->Windows 2000-2003->Security Log->System->EventID 516 - Internal resources allocated for the queuing of audit messages have been exhausted, leading to the loss of some audits

EventID 516 - Internal resources allocated for the queuing of audit messages have been exhausted, leading to the loss of some audits

This event record indicates that audit event records have been discarded, due to overwriting of earlier records or due to cessation of auditing, depending on the audit policy you have established; or by internal event queues exceeding their maximum length.

Find more information about this event on ultimatewindowssecurity.com.

Corresponding events on other OS versions:

Windows 2008

EventID 4612 - Internal resources allocated for the queuing of audit messages have been exhausted, leading to the loss of some audits

Sample:

        Event Type:	Success Audit
        Event Source:	SECURITY
        Event Category:	System Event
        Event ID:	516
        Date:		4/17/2009
        Time:		9:02:10 AM
        User:		N/A
        Computer:	KERMIT
        Description:
        Internal resources allocated for the queuing of audit messages have been exhausted, leading to the loss of some audits. Number of audit messages discarded: 13

        For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.

Log Type:

Windows Event Log

Uniquely Identified By:

Log Name:

Security

Filtering Field	Equals to Value
OSVersion	Windows 2000 Windows XP Windows 2003
Category	System
Source	Security
EventId	516

Field Matching

Field	Description	Stored in	Sample Value
DateTime	Date/Time of event origination in GMT format.	DateTime	10.10.2000 19:00:00
Source	Name of an Application or System Service originating the event.	Source	Security
Type	Warning, Information, Error, Success, Failure, etc.	Type	Success
User	Domain\Account name of user/service/computer initiating event.	User	RESEARCH\Alebovsky
Computer	Name of server workstation where event was logged.	Computer	DC1
EventID	Numerical ID of event. Unique within one Event Source.	EventId	576
Description	The entire unparsed event message.	Description	Special privileges assigned to new logon.
Log Name	The name of the event log (e.g. Application, Security, System, etc.)	LogName	Security
Category	A name for a subclass of events within the same Event Source.	Category	Logon/Logoff