mdnsresponder.exe is a program which is probably legit. So, if mdnsresponder.exe is on your laptop or desktop computer, it is probably ok, and will NOT cause problems. Even if your system is clean, we still advise you to run a good antivirus with a good detection rate, in order to defend your PC against viruses and malware.
Normally, this program is stored in C:\Program Files\Bonjour\mDNSResponder.exe.
The MD5 fingerprint for this file is 5ea9c80f18cbc393ea7d9a2991ded4b5.
This application is a Windows service. This means it runs on your system in background, usually without showing anything to you. Most Windows services are useful programs, which perform useful features to other applications or to the Windows Operating System.
This app runs in 32-bit mode. It does not exploit the entire set of features of nowadays' PC processors. This is quite normal because the publishers did not upgrade it to use the x64 instruction set.
The description extracted from the exe is Bonjour Service.
File version stored as a property 3,1,0,1.
Company Apple Inc..
Copyright notice Copyright (c) 2003-2015 Apple Inc..
Some insecure features of the Operating System have been used, such as functions for tapping the keyboard. We advise you to read more about this program.
mdnsresponder.exe is digitally signed. Nowadays most virus-free software applications are digitally signed.
The digital signature extracted from mdnsresponder.exe checks out perfectly. This is excellent.
Digital certificate name: Apple Inc.
Certificate's issuer name: VeriSign Class 3 Code Signing 2010 CA
It has an uninstall routine, which is a good sign. si are uninstall.