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What is mDNSResponder.exe?

Part of Bonjour by Apple

What is it?

Bonjour provides a general method to discover services on a local area network. The software is widely used throughout Mac OS, and allows users to set up a network without any configuration. It is used to find printers and file-sharing servers. iTunes uses Bonjour to find shared music, iPhoto to find shared photos. Bonjour for Windows and AirPort Base Stations may be configured to use Wide Area Bonjour which allows for wide area service discovery via an appropriately configured DNS server.

Description of mdnsresponder.exe from Apple

“Bonjour, also known as zero-configuration networking, enables automatic discovery of computers, devices, and services on IP networks using industry standard IP protocols. It is a key component of Apple applications (e.g., iTunes, iPhoto), services (e.g., MobileMe) and devices (e.g., Apple TV, and Airport). Developers can easily leverage Bonjour from both Mac OS X and iOS.”

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How does mdnsresponder.exe run?

Service - mDNSResponder.exe runs as a background Windows service called 'Bonjour Service' (Служба Bonjour).

Community

What is the community is seeing?	What is the community is doing?
About 0.4% of all Boost users have the mdnsresponder.exe process running.	Of the 0.4% of mdnsresponder.exe users, 14.3% have disabled it.

How stable is Bonjour?

Based on crash data discovered by Boost, stability is a measure of how sound this particular process and the average percent of times it crashes.

	mdnsresponder.exe0.03%

	Typical program1.26%

How resource intensive is mDNSResponder.exe?

Comparison based on the average resource utilization across all programs.

0.00065% CPU6525.6%

Average CPU utilization across all programs is 0.00001%.

2.62 MB RAM12.2%

Average private memory utilization across all programs is 21.53 MB.

2 /min0.1%

Average I/O read and write operations for all programs is 2,253 per minute.

4 context switches/sec4.0%

Average context switches for all programs is 100 per second.

Typical file (disk image) location:

C:\Program Files\bonjour\mdnsresponder.exe

Are there other versions of Bonjour?

mdnsresponder.exe - version 3,0,0,10 (this)

mdnsresponder.exe - version 3,0,0,10

mdnsresponder.exe - version 2.0.2.0

What modules are loaded?

A module is a dynamic link library (DLL) or an executable file that is loaded into the process. Below is a list of non-system modules that are loaded by Bonjour.

msvcrt.dll (Windows NT CRT DLL by Microsoft)

snxhk64.dll (avast! Antivirus by AVAST Software)

nvinitx.dll (NVIDIA D3D shim drivers by NVIDIA)

bfllr.dll ((TM) Killer PCI-E by Bigfoot Networks)

radeaphook64.dll (Citrix offline plug-in by CITRIX SYSTEMS)

What programs install mDNSResponder.exe?

Bonjour (by Apple Inc.)

Bonjour by Apple Inc. - Bonjour Service provides a general method to discover services on a local area network. The software is widely used throughout Mac OS and Windows for iOS devices, and allows users to set up a network without any configur

Program URL: www.apple.com/support/bonjour/

Program help URL: www.apple.com/support/

Install path: C:\Program Files\Bonjour\

Size: 616.3 KB

BonjourCore by Apple Inc.

Install path: C:\Program Files\bonjour

Bonjour-Druckdienste by Apple Inc.

Program URL: www.apple.com/de

Program help URL: www.apple.com/de/support

Install path: C:\Program Files\Bonjour Print Services\

Size: 3.17 MB

Bonjour Print Services by Apple Inc. - Bonjour Service provides a general method to discover services on a local area network including network printers. The software allows users to set up a network without any configuration. It is used to find printers and

Program URL: www.apple.com

Program help URL: www.apple.com/support/

Install path: C:\Program Files\Bonjour Print Services\

Size: 3.17 MB

What else is related?

dnssdx.dll (Bonjour by Apple)

explorerplugin.dll (Bonjour by Apple)

mdnsnsp.dll (Bonjour by Apple)

dnssd-hobbyist.dll (Bonjour by Apple)

jdns_sd.dll (Bonjour by Apple)

dnssd.dll (Bonjour by Apple)

mdnsnsp.dll (Bonjour by Apple)

dnssd.dll (Bonjour by Apple)

mdnsnsp.dll (Bonjour by Apple)

mdnsresponder.exe (Bonjour by Apple)

shellstreams.dll (iCloud Control Panel by Apple)

coreadi.dll (CoreADI by Apple)

iadcore.dll (iAd by Apple)

applebmdavlocalized.dll (iCloud Control Panel by Apple)

applephotostreamsdownloader_main.dll (iCloud Control Panel by Apple)

appleiedav.exe (iCloud Control Panel by Apple)

applephotostreamsdownloader.exe (iCloud Control Panel by Apple)

applephotostreamsps.dll (iCloud Control Panel by Apple)

applephotostreams_main.dll (iCloud Control Panel by Apple)

shellstreams64.dll (iCloud Control Panel by Apple)

icloud.exe (iCloud by Apple)

applephotostreams.exe (iCloud Control Panel by Apple)

Bonjour Stability

mdnsresponder.exe crashes or has encountered a critical error 0.8900% of the time.


1.	Error: Stopped working (APPCRASH) Crashing module: ntdll.dll (still researching...) Occurred: over 6 months ago

What Windows OS versions does this run on?

Windows Vista (TM) Home Premium (6.0.6002.131072)

Windows 7 Enterprise (6.1.7600.0)

Windows 7 Home Premium (6.1.7600.0)

Windows 7 Professional (6.1.7600.0)

Windows 7 Ultimate (6.1.7600.0)

Windows 7 Ultimate (6.1.7600.196608)

Microsoft Windows 7 Professional (6.1.7601.65536)

Windows 7 Enterprise (6.1.7601.65536)

Windows 7 Home Basic (6.1.7601.65536)

Windows 7 Home Premium (6.1.7601.65536)

Windows 7 Home Premium N (6.1.7601.65536)

Windows 7 Professional (6.1.7601.65536)

About Apple Inc.

Started by Steve Jobs and Steve Wozniak, Apple has expanded from computers to consumer electronics over the last 30 years, officially changing their name from A More...

www.apple.com

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File details

File name: mDNSResponder.exe

Publisher: Apple Inc.

Name: Bonjour

Description: Bonjour Service

Version: 3,0,0,10

Original file name: mDNSResponder.exe

Digital certificate

Issued to: Apple Inc.

Certificate authority: VeriSign

Expiration date: 6/27/2011

Resource utilization

CPU utilization averages

Total CPU: 0.0015521080%

Privileged CPU: 0.0008995527%

User CPU: 0.00065255532930%

Privileged CPU time: 28458083.84 ms

Privileged CPU time /min: 3,325 ms

CPU cycle count: 101,740,102

CPU cycle count /min: 38,521,839

Context switches /sec: 4

Memory utilization averages

Committed memory: 37.72 MB

Peak committed memory: 39.89 MB

Paged memory: 2.62 MB

Peak paged memory: 2.69 MB

Paged system memory: 67.15 KB

Non-paged system memory: 16.62 KB

Working set memory: 4.63 MB

Peak working set memory: 6.01 MB

Min working set memory: 4 MB

Private memory: 2.62 MB

Page faults: 7,066

Page faults /min: 13

Process I/O averages

Total read operations: 193

Read operations /min: 1

Total read transfer: 5.01 KB

Read transfer /min: 4 Bytes

Total write operations: 6

Write operations /min: 1

Total write transfer: 884 Bytes

Write transfer /min: 2 Bytes

Total other operations: 906,954

Other operations /min: 804

Total other transfer: 27.72 MB

Other Transfer /min: 26.16 KB

Resources

Handle count average: 123

Thread count average: 5

Thread resource averages

sechost.dll

ke1e1c~1.dll

ntdll.dll

advapi32.dll

sechost.dll

safeips64.dll

ntdll.dll

ke6d28~1.dll

mdnsresponder.exe

ntdll.dll

Process details

Runs as (owner): User

Windows platform: 64-bit

Runs as a service: Yes

Parent Processes

services.exe (Services and Controller app by Microsoft)

Process Command

"C:\Program Files\Bonjour\mDNSResponder.exe"

Service details

Name: Служба Bonjour

Service name: Bonjour Service

Service type: Win32OwnProcess

Description: “Позволяет аппаратным устройствам и программным службам выполнять автоматическую самоконфигурацию в сети и оповещать о своем присутствии.”

Network connectivity

UDP: LISTENING on port 5353

TCP: localhost on port 5354

UDP: LISTENING on port 5353

TCP: localhost on port 5354

UDP: LISTENING on port 5353

TCP: localhost on port 5354

UDP: LISTENING on port 5353

TCP: localhost on port 5354

UDP: LISTENING on port 5353

TCP: localhost on port 5354

UDP: LISTENING on port 5353

TCP: localhost on port 5354

Image hashes

MD5: ebbcd5dfbb1de70e8f4af8fa59e401fd

SHA-1: 5ca966b9a5ff4ecd0e139e21b3e30f3ea48e1a88

SHA-256: 17bffc5df609ce3b2f0cab4bd6c118608c66a3ad86116a47e90b2bb7d8954122

PE image details

CLR assembly: Yes

CLR NGENed: No

Subsystem: Windows Console

Langauge*: Microsoft Visual C# / Basic .NET

Import Table

advapi32.dll View import functions for advapi32.dll

iphlpapi.dll View import functions for iphlpapi.dll

kernel32.dll View import functions for kernel32.dll

netapi32.dll View import functions for netapi32.dll

ole32.dll

powrprof.dll View import functions for powrprof.dll

user32.dll View import functions for user32.dll

ws2_32.dll View import functions for ws2_32.dll

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Boost Connect

What is mDNSResponder.exe?

Part of Bonjour by Apple

What is it?

How does mdnsresponder.exe run?

Community

Are there other versions of Bonjour?

What modules are loaded?

What programs install mDNSResponder.exe?

What else is related?

Bonjour Stability

What Windows OS versions does this run on?

About Apple Inc.

File details

Digital certificate

Resource utilization

Process details

Service details

Network connectivity

Image hashes

PE image details

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