Windows DNS crashes in the app log what is the best way to fix this ? should i bee worried?

Log Name:      Application
Source:        Application Error
D

ate:          1/30/1968 4:40:01 PM
Event ID:      1000
Task Category: (100)
Level:         Error
Keywords:      Classic
User:          N/A
Computer:      dc2.pizza1.local
Description:
Faulting application name: dns.exe, version: 6.1.7601.17514, time stamp: 0x4ce7a052
Faulting module name: dns.exe, version: 6.1.7601.17514, time stamp: 0x4ce7a052
Exception code: 0xc0000005
Fault offset: 0x000000000001f25e
Faulting process id: 0xc1c
Faulting application start time: 0x01cc9049a3a542c9
Faulting application path: C:\Windows\system32\dns.exe
Faulting module path: C:\Windows\system32\dns.exe
Report Id: 2d5cf502-fdb7-11e0-91e2-005056ad0101
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
  <System>
    <Provider Name="Application Error" />
    <EventID Qualifiers="0">1000</EventID>
    <Level>2</Level>
    <Task>100</Task>
    <Keywords>0x80000000000000</Keywords>
    <TimeCreated SystemTime="2011-10-23T20:40:01.000000000Z" />
    <EventRecordID>1514</EventRecordID>
    <Channel>Application</Channel>
    <Computer>dc2.xxxxxxxd1.local</Computer>
    <Security />
  </System>
  <EventData>
    <Data>dns.exe</Data>
    <Data>6.1.7601.17514</Data>
    <Data>4ce7a052</Data>
    <Data>dns.exe</Data>
    <Data>6.1.7601.17514</Data>
    <Data>4ce7a052</Data>
    <Data>c0000005</Data>
    <Data>000000000001f25e</Data>
    <Data>c1c</Data>
    <Data>01cc9049a3a542c9</Data>
    <Data>C:\Windows\system32\dns.exe</Data>
    <Data>C:\Windows\system32\dns.exe</Data>
    <Data>2d5cf502-fdb7-11e0-91e2-005056ad0101</Data>
  </EventData>