Event ID 4673 on file server

[pinkpanther56]

I'm seeing allot of these messages in my event logs.

Event 4673

Faliure Audit

Category: Sensitive Privilege Use


A privileged service was called.

Subject:
Security ID: NETWORK SERVICE
Account Name: SERVER$
Account Domain: DOMAIN
Logon ID: 0x3e4

Service:
Server: Security
Service Name: PsWorkingSetAdjust

Process:
Process ID: 0x4a4
Process Name: C:\Windows\System32\svchost.exe

Service Request Information:
Privileges: SeIncreaseBasePriorityPrivilege

I've had a look on google and can see articles that say not to worry. Anyone here get these on their 2008 SP2 file servers as well?

http://www.ultimatewindowssecurity.com/securitylog/encyclopedia/event.aspx?eventid=4673

Thanks.