Airport for Windows doesn't start due to missing dnssd.dll?

I've just installed AirPort for Windows v5.4.2 on my Windows XP SP3 laptop, yet it doesn't start due to a supposedly missing dnssd.dll file.
The error message states: "This application has failed to start because dnssd.dll was not found. Re-installing the application may fix this problem" .
Re-installing does not fix this. Any ideas?

That's interesting. It's actually a BonJour dll, and it lives at:
C:\WINDOWS\system32\dnssd.dll
I can replicate your error message by dragging the dll out of system32 and on to the desktop prior to trying to launch the Airport utility.
If it has gone walkabout for you in a similar fashion, here's a way of getting it back.
Restart the PC. Now head into your Add or Remove Programs Control Panel. Select BonJour, click "Change" and then click "Repair".
Does the repair install of BonJour go through properly? If so, can you open the Airport utility without the error message?

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Hello.
the iPhone Configuration Utility 3.6 for Windows will not start up/load anymore.
It worked fine at first, then I tried to start it up today and I got an error:
failed to create an ipc port access is denied
Now there is no message at all. Just wont launch.
I find NO support at Apple. I have seen about 20 other cries for help on these forums and no seems to have received any help for this. Does anyone know how to get this Utility working?
I am using Windows XP SP3
I have tried upgrdading to .NET 4 SP1 from .NET 3.5 SP1 and that didnt work so went back the other way and still no change.
I tried completely uninstalling and deleting all references in Regedit and reinstalling from the start about 4 times.
I tried completely uninstalling and then going back to an older version (2.2) and it doesn't work either.
Unfortunately there is no help on Apply that I can find and trying to find an -actual email support for Apple software or products is a joke- (man, nothing is more aggravating when you need product help and the provider hides or completely does away with any way to contact them for help ro sends you on an hour long search for it...)
I need to get this working as I am providing an easy iphone configure for my VPN service. Can anyone help?
THanks!!
Tres

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Here is a method:
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http://www.apple.com/quicktime/download/win.html
http://www.apple.com/itunes/download/
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To run the program – All Programs>>Windows Install Cleanup
http://support.microsoft.com/kb/290301/
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Vista
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Sorry I went off to dream land and Apple decided to glitch their server so the edit failed. I am answering different posts with different problems and went off about networking. Blame it on age.
You can ignore most of the post above.
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Airport for Windows doesn't start due to missing dnssd.dll?

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