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 usually located in the 'C:\Program Files\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.
The following is the available information on mdnsNSP.dll:
| Property | Value |
|---|---|
| Product name | Bonjour |
| Company name | Apple Inc. |
| File description | Bonjour Namespace Provider |
| Internal name | mdnsNSP.dll |
| Original filename | mdnsNSP.dll |
| Legal copyright | Copyright (C) 2003-2008 Apple Inc. |
| Product version | 1,0,6,2 |
| File version | 1,0,6,2 |
Here's a screenshot of the file properties when displayed by Windows Explorer:
| Product name | Bonjour |
| Company name | Apple Inc. |
| File description | Bonjour Namespace Provider |
| Internal name | mdnsNSP.dll |
| Original filename | mdnsNSP.dll |
| Legal copyright | Copyright (C) 2003-2008 Apple Inc. |
| Product version | 1,0,6,2 |
| File version | 1,0,6,2 |
mdnsNSP.dll is not signed.
None of the 49 anti-virus programs at VirusTotal detected the mdnsNSP.dll file.
mdnsNSP.dll may also use other filenames. The most common variants are listed below:
mdnsNSP.dll may also be located in other folders than C:\Program Files\Bonjour\. The most common variants are listed below:
mdnsNSP.dll (813 votes)
| Property | Value |
|---|---|
| MD5 | 292f92469efb2fd402e00742c06d539d |
| SHA256 | 607fb70e8f3e8f09139b1851c18878669a5d2f62c2b232636a30fa76ad793dda |
To help other users, please let us know what you will do with mdnsNSP.dll:
The poll result listed below shows what users chose to do with mdnsNSP.dll. 28% have voted for removal. Based on votes from 282 users.

NOTE: Please do not use this poll as the only source of input to determine what you will do with mdnsNSP.dll.
If you feel that you need more information to determine if your should keep this file or remove it, please read this guide.
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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.
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# 10 May 2026, 0:21
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