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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.
Download Boost and enjoy your PC. Speed up Bonjour and optimize your PC.

How does mdnsresponder.exe run?

Service - mDNSResponder.exe runs as a background Windows service called 'Bonjour Service' (Служба Bonjour). This service runs as the SYSTEM account with extensive privileges on the local computer, and acts as the computer on the network. Служба Bonjour runs as a program that can be started by the Service Controller and that obeys the service control protocol. This type of service runs in a process by itself.

How does mdnsresponder.exe start?


What is the community is seeing?What is the community is doing?
About 0.2% of all Boost users have the mdnsresponder.exe process running.Of the 0.2% of mdnsresponder.exe users, 25.0% have disabled it.
How resource intensive is mDNSResponder.exe?
Comparison based on the average resource utilization across all programs.
0.00029% CPU2900.6%
Average CPU utilization across all programs is 0.00001%.
     1.68 MB RAM7.8%
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 GDI objects2.7%
Average number of GUI GDI and USER objects for all programs is 150.
Typical file (disk image) location:
C:\Program Files\bonjour\mdnsresponder.exe

Are there other versions of Bonjour?

What programs install mDNSResponder.exe?

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
µTorrent by BitTorrent Inc. - µTorrent is a is a free, ad-supported, lighter-weight BitTorrent client designed to consume less resources then the full BitTorrent version. Some uTorrent installs include potentially unwanted programs in the form o
Program URL: www.utorrent.com
Install path: C:\Program Files\uTorrent
Size: 946.39 KB

What else is related?

What Windows OS versions does this run on?

Microsoft Windows XP (5.1.2600.131072)
Microsoft Windows XP (5.1.2600.196608)
Windows Vista Ultimate (6.0.6000.0)
Windows Vista (TM) Home Premium (6.0.6002.131072)

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...
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File details

File name: mDNSResponder.exe
Publisher: Apple Inc. (verified)
Name: Bonjour
Description: Bonjour Service
Version: 1,0,6,2
Size: 233.29 KB
Original file name: mDNSResponder.exe

Digital certificate

Issued to: Apple Inc.
Certificate authority: VeriSign
Effective date: 5/17/2009
Expiration date: 6/26/2011

Resource utilization

CPU utilization averages
Total CPU: 0.0007450638%
Privileged CPU: 0.0004550029%
User CPU: 0.00029006094470%
Total CPU time: 22,242 ms
Total CPU time /min: 0 ms
Privileged CPU time: 18210.98 ms
Privileged CPU time /min: 1 ms
User CPU time: 5136.33 ms
User CPU time /min: 0 ms
CPU cycle count: 1,471,448,482
CPU cycle count /min: 6,283,197
Memory utilization averages
Committed memory: 42.29 MB
Peak committed memory: 43.25 MB
Paged memory: 1.68 MB
Peak paged memory: 1.7 MB
Paged system memory: 87.36 KB
Non-paged system memory: 6.35 KB
Working set memory: 2.48 MB
Peak working set memory: 4.38 MB
Min working set memory: 2.44 MB
Private memory: 1.68 MB
Page faults: 2,230
Page faults /min: 6
Process I/O averages
Total read operations: 87
Read operations /min: 1
Total read transfer: 190.84 KB
Read transfer /min: 70 Bytes
Total write operations: 34
Write operations /min: 1
Total write transfer: 606 Bytes
Write transfer /min: 0 Bytes
Total other operations: 505,538
Other operations /min: 24
Total other transfer: 11.93 MB
Other Transfer /min: 516 Bytes
GUI Object Averages
GDI objects: 4
USER objects: 3
Handle count average: 288
Thread count average: 6
Thread resource averages

Process details

Runs as (owner): System
Integrety level: System
Windows platform: 32-bit
Runs as a service: Yes
Parent Processes
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
UDP: LISTENING on port 5353
Windows Firewall allowed program: Yes

Image hashes

MD5: 3f56903e124e820aeece6d471583c6c1
SHA-1: e0869cb262e68c6596f7e3faf42aa6da7af1755e
SHA-256: b3c045afacc8a8f5dc289ade9acfb2fe7f9ca24a900bbaed47e2a63837208cb3

PE image details

File entropy: 6.58097
File packed: No
Import Table
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