Bonjour, also known as zero-configuration networking, enables automatic discovery of computers, devices, and services on IP networks. Bonjour uses industry standard IP protocols to allow devices to automatically discover each other without the need to enter IP addresses or configure DNS servers.

If you’ve installed software by Apple such as iTunes, software by Adobe such as Premiere Pro, Skype, Gizmo, chances are there’s already a Bonjour folder in your Program Files. This service starts automatically and runs a process named mDNSResponder.exe which cannot be ended by Windows Task Manager. If you do not want Bonjour to be in your computer and want to uninstall it, sometimes you can’t find any uninstaller for it! Even if you go to Control Panel’s Add or Remove Program, you can’t find the uninstaller there as well.

Here’s how to safely uninstall Bonjour and remove mDNSResponder.exe

Just follow the few simple steps below to remove Bonjour fro your computer.

1. Go to Start > Run > type the command below and hit OK.

“%PROGRAMFILES%BonjourmDNSResponder.exe” -remove

2. Navigate to C:Program FilesBonjour
3. Rename the mdnsNSP.dll file in that folder to mdnsNSP.old
4. Restart your computer
5. Delete the Program FilesBonjour folder

The first command will stop and remove Bonjour Service from your computer. To confirm, go to Start > Run and type services.msc. Look for Bonjour Service name. If it’s not there, you’ve successfully removed it.

Gizmo Project has created a small tool (35KB TurnOffBonjour.exe) that turns off and removes Bonjour service. However, it will not remove the Bonjour folder from Program Files. You will still need to manually delete the Bonjour folder after restart. The reason why you’re advised to delete the folder after restart is in case there’s a problem, the Bonjour files are still there for you to restore.

If you encountered problems after uninstalling or removing Bonjour, you can download and reinstall Bonjour.
[ Download Bonjour for Windows ]