Dnssd.dll Errors
There are several ways dnssd.dll errors can show up on your computer. Here are some of the more common messages you might see:
Dnssd.dll Not FoundThis application failed to start because dnssd.dll was not found. Re-installing the application may fix this problem.Cannot find [PATH]\dnssd.dllThe file dnssd.dll is missing.Cannot start [APPLICATION]. A required component is missing: dnssd.dll. Please install [APPLICATION] again.
The context of the error is an important piece of information that will be helpful while solving the problem. Dnssd.dll is a file used by Apple software such as Bonjour, so error messages most often occur while using or installing Apple software programs, but might also be seen when Windows first starts up. Because Apple products use this DLL file, it’s stored in the %programfiles%\iTunes folder. The dnssd.dll error message might also apply to other programs or systems that might utilize the file on any of Microsoft’s operating systems, including Windows 11, Windows 10, Windows 8, Windows 7, Windows Vista, Windows XP, and Windows 2000.
How to Fix Dnssd.dll Errors
Follow these steps in the order they’re presented to try the easier solutions first.
Need More Help?
If you’re not interested in fixing this problem yourself, see How Do I Get My Computer Fixed? for a full list of your support options, plus help with everything along the way like figuring out repair costs, getting your files off, choosing a repair service, and a lot more. If you suspect that you’ve accidentally deleted this file, but you’ve already emptied the Recycle Bin, you may be able to recover dnssd.dll with a free file recovery program. Just make sure it wasn’t really a virus the first time it was deleted! Try your best to complete this step. Reinstalling the program that provides the dnssd.dll file, if possible, is a likely solution to this DLL error. For example, completely uninstall and then reinstall iTunes if you see the dnssd.dll error there. One exception that some users have had trouble with is if you see the error after installing Apple’s AirPort Utility. That program requires Bonjour, and might throw the dnssd.dll error (and reference APAgent.exe) if you don’t have it installed. So, in this instance, you’d want to install Bonjour and not reinstall AirPort Utility. If the hardware fails any of your tests, replace the memory or replace the hard drive as soon as possible.
