What is mdnsNSP.dll?

mdnsNSP.dll is part of Bonjour and developed by Apple Inc. according to the mdnsNSP.dll version information.

mdnsNSP.dll's description is "Bonjour Namespace Provider"

mdnsNSP.dll is digitally signed by Apple Inc..

mdnsNSP.dll is usually located in the 'C:\Program Files (x86)\Bonjour\' folder.

None of the anti-virus scanners at VirusTotal reports anything malicious about mdnsNSP.dll.

If you have additional information about the file, please share it with the FreeFixer users by posting a comment at the bottom of this page.

Vendor and version information [?]

The following is the available information on mdnsNSP.dll:

Product nameBonjour
Company nameApple Inc.
File descriptionBonjour Namespace Provider
Internal namemdnsNSP.dll
Original filenamemdnsNSP.dll
Legal copyrightCopyright (c) 2003-2015 Apple Inc.
Product version3,1,0,1
File version3,1,0,1

Here's a screenshot of the file properties when displayed by Windows Explorer:

Product nameBonjour
Company nameApple Inc.
File descriptionBonjour Namespace Provider
Internal namemdnsNSP.dll
Original filenamemdnsNSP.dll
Legal copyrightCopyright (c) 2003-2015 Apple Inc.
Product version3,1,0,1
File version3,1,0,1

Digital signatures [?]

mdnsNSP.dll has a valid digital signature.

Signer nameApple Inc.
Certificate issuer nameVeriSign Class 3 Code Signing 2010 CA
Certificate serial number2b20eb3380792ab011f662c064fdb473

VirusTotal report

None of the 56 anti-virus programs at VirusTotal detected the mdnsNSP.dll file.

None of the 56 anti-virus programs detected the mdnsNSP.dll file.

Folder name variants

mdnsNSP.dll may also be located in other folders than C:\Program Files (x86)\Bonjour\. The most common variants are listed below:

Other files also named mdnsNSP.dll

mdnsNSP.dll (812 votes)

Hashes [?]


What will you do with mdnsNSP.dll?

To help other users, please let us know what you will do with mdnsNSP.dll:

What did other users do?

The poll result listed below shows what users chose to do with mdnsNSP.dll. 17% have voted for removal. Based on votes from 265 users.

User vote results: There were 46 votes to remove and 219 votes to keep

Malware or legitimate?

If you feel that you need more information to determine if your should keep this file or remove it, please read this guide.

Please select the option that best describe your thoughts on the information provided on this web page

Free online surveys

And now some shameless self promotion ;)

A screenshot of FreeFixer's scan result.Hi, my name is Roger Karlsson. I've been running this website since 2006. I want to let you know about the FreeFixer program. FreeFixer is a freeware tool that analyzes your system and let you manually identify unwanted programs. Once you've identified some malware files, FreeFixer is pretty good at removing them. You can download FreeFixer here. It runs on Windows 2000/XP/2003/2008/2016/2019/Vista/7/8/8.1/10. Supports both 32- and 64-bit Windows.

If you have questions, feedback on FreeFixer or the freefixer.com website, need help analyzing FreeFixer's scan result or just want to say hello, please contact me. You can find my email address at the contact page.


Please share with the other users what you think about this file. What does this file do? Is it legitimate or something that your computer is better without? Do you know how it was installed on your system? Did you install it yourself or did it come bundled with some other software? Is it running smoothly or do you get some error message? Any information that will help to document this file is welcome. Thank you for your contributions.

I'm reading all new comments so don't hesitate to post a question about the file. If I don't have the answer perhaps another user can help you.

Arlene Colthirst writes

0 thumbs

Happy Valentine's Day.
I am human, after all.

# 14 Feb 2016, 15:30

Alan LaPearle writes

0 thumbs

Just found this program. I have used it just a short time but can see that it is a life saver concerning Windows systems; a really great program!! I love how it forces users to learn about their Windows computers, and how to be very careful playing around with removing files (we hope) etc.. The constant and in-depth help is also really great.
THANK YOU for providing this software!

# 7 Aug 2016, 4:32

Roger Karlsson writes

0 thumbs

@Alan: Thank you very much for the feedback! Happy to hear you like the FreeFixer software.

# 13 Aug 2016, 6:59

paol writes

0 thumbs

Bonjour is a file that loads with Itunes, and maybe other Apple programs. I think it's related to portable devices which I don't have. I have deleted it in the past and, as I remember, it causes problems with other Apple programs. It's harmless as far as I know.

# 13 Jan 2017, 12:27

Roger Karlsson writes

0 thumbs

@paol: Yeah, mdnsNSP.dll is harmless software from Apple.

# 18 May 2017, 11:13

Drogo Ferrari writes

1 thumb

This file is related to the Application listed in Programs and Features (Windows 7) named Bonjour. I installed some apple software (ITunes) to use with my IPhone and this appeared in Control Panel\Programs and features. No reason to freak out on this one.

# 24 Aug 2017, 16:13

Bodmar Blücher writes

0 thumbs

In den letzten Jahren hat sich die Welt des Glücksspiels durch das Aufkommen von Online-Casinos radikal verändert. Diese Branche hat sich aufgrund technologischer Innovationen weiterentwickelt. https://heterodox.economicblogs.org/socialdemocracy21stcentury/2023/technologie-in-deutschen-casinos-wie-sich-casinos-an-das-digitale-zeitalter-anpassen Die Technologie verändert die Glücksspielbranche weiterhin. Wir können davon ausgehen, dass Online-Casinos in Zukunft noch spannender, personalisierter und sicherer werden.

# 1 Feb 2024, 3:40

Leave a reply