What Is Bonjour mDNSResponder.exe?

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You are probably reading this because you have found mDNSResponder.exe on your computer and you want to know what it is and why it exists. Fortunately, the process is not a virus and was developed by Apple, so there is no need to panic. So, do you feel better? Okay, let’s take a closer look now that the emergency is over, so you can decide if you want to do something with the Windows process.

For clarity, mDNSResponder.exe belongs to Bonjour for Windows, a service associated with this task. If you connect an Apple device or install iTunes on your computer, the application will also be installed. You can see a communication interface or a network interface for Apple Windows devices. This is useful if you use iTunes to share your library. An iTunes instance can use Bonjour to discover another iTunes shared library on the same network.

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The process is associated with an Apple service and is not part of the operating system itself. It is therefore not necessary to let it run in the background, but iTunes for Windows or other Apple-related applications require it. If you connect Apple devices to your computer or share the iTunes library, the program is essential. This process does not require a lot of system resources and would not interfere with your work.

Not using iTunes? You are not alone, and this is not the only way Bonjour installs itself on your computer. It is also included in a number of other software programs such as Pidgin, Skype and Safari and is used to connect clients on the same network.

It is implemented as a Windows service that you can see when you go to the Services window (or simply type services.msc in the search field of the Start menu). You can stop it from here at any time.

How to delete mDNSResponder.exe?

The first thing you need to keep in mind is that you can disable Bonjour without worrying about deleting it. It’s a much simpler process all around, so if it arouses your interest, do the following:

  1. First, boot on your computer with full administrator privileges.
  2. Then press Windows + R, type Services.msc and click OK.
  3. Once the services are loaded, double-click on Bonjour Services.
  4. This opens the Bonjour Services Properties applet, from here click Stop, then set the startup type to Disabled, then click OK.


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