Windows 7 Forums
Welcome to Windows 7 Forums. Our forum is dedicated to helping you find support and solutions for any problems regarding your Windows 7 PC be it Dell, HP, Acer, Asus or a custom build. We also provide an extensive Windows 7 tutorial section that covers a wide range of tips and tricks.

Windows 7: Quicktime overrides my default m4a association with WMP

09 Jan 2010   #21
Microsoft MVP

Vista, Windows7, Mint Mate, Zorin, Windows 8

That sounds like good news. Happy computing.
My System SpecsSystem Spec
11 Aug 2010   #22

Windows 7
Possible Solution

I've been able to prevent the Quicktime plugin from taking over the displaying of .tiff images in IE and Firefox by manually deleting all of the Quicktime .dll files from the browser plugin directories. Under Program files, go to Internet Explorer\plugins (or Mozilla Firefox\plugins) and search for npqtplugin.dll (and its cousins #2 through 7 on my system). Delete all of these (you might want to sort the files by date to make sure you get the right ones and all of them).

Doing this allows you to keep Apple Quicktime installed, but prevents it from hijacking your browser.

I think the same should work for .m4a files.
My System SpecsSystem Spec
28 Dec 2010   #23

Windows XP Pro SP3

@johnsmith11 - Do you remember if you also deleted the file, "QuickTimePlugin.class"? I'm going to try what you suggested (deleting the 7 QT plugin DLL's) and wasn't sure what that additional file is for. Assuming it should also be zapped, but wanted to ask what you (or others) thought.

My System SpecsSystem Spec

28 Dec 2010   #24

Windows 7

Yes, I also deleted the QuickTimePlugin.class file (since it had the exact same date as the others).

I think it is also possible to move these files into a newly created subdirectory (e.g. Disabled), just in case you ever want to re-enable the QuickTime plugin without having to reinstall it.
My System SpecsSystem Spec
28 Dec 2010   #25

Windows XP Pro SP3

Perfect! Thanks for the quick reply. We'll save the files as you suggested in case they ever need to come back!

Happy New Year!
My System SpecsSystem Spec

Thread Tools

Similar help and support threads
Thread Forum
Unable to set Firefox association to default
Even though i tried reset Firefox to its original default settings still it won't set to Firefox association to default la472qXaycs
Browsers & Mail
Change default protocol association
Hello, how to edit registry?
General Discussion
Set default file association for all users
Hi I would like tiff files to be opened by internet explorer for all users. I am a little puzzled how to set that in the registry. I want to apply this to over 20 computers so that no matter who logs on, the tiff files will open with IE. We are using an application called Alternatiff that is tied...
General Discussion
Default File Association Problem
I am wanting to make MPC-HC player my default for video playback. However, when I do the 'Open With', check the 'always use this as default' box, and select the .exe, the 'Open With' dialogue's 'OK' button is greyed out. I even did the restore default assoc. tutorial here with no luck. Help! ...
General Discussion
WinCDEmu overrides Universal Extractor for default programs.
Title says it all. the "set associations" part of default programs lists a whole lot of compressed file formats with the description of "universal extractor archive", but as opening with WinCDEmu. how do I fix this quickly? there's like 30 of them. thanks.

Our Sites

Site Links

About Us

Find Us

Windows 7 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 7" and related materials are trademarks of Microsoft Corp.

© Designer Media Ltd

All times are GMT -5. The time now is 17:09.
Twitter Facebook