Dec312011

How can I change or fix an association of a .dll file in Windows 7?

Joeri asks:

I need to remove/undo the association (notepad) for a .Dll file.

I’ve successfully followed these steps:
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\[fileextension]\OpenWithList. and deleted the unwanted file.

Then I checked the Recommended Program List for .Dll file. But the unwanted program was still there in list. So I thought changes might be reflected after reboot. But even after reboot it was showing the program in list.

I’ve again confirmed that key is deleted. So what’s wrong?



Comments for this Question are closed.

If you are looking for help, please ask a new question here.

We will be happy to help you!

3 Answers -

0 votes

Jeff Fabish

December 31, 2011

Joeri,

Please download and run this registry file. That should fix it.

- Jeff

Joeri

I tried it already and dident worked, I think I almost tried everything, I know it doesnt affect the file itself but still the notepad association remains.. :) Thank you

January 1, 2012
0 votes

Anonymous

December 31, 2011

Iphone backup extractor, try it with trial version with your reponsibility and see if it can help you 
http://www.iphonebackupextractor.com/

0 votes

FIDELIS

January 2, 2012

Hello, when you navigated to path in your post and found the .dll file, did you find a UserChoice entry in OpenWithList?  If you did, you could delete that entry and restart system.  That should set back your default extensions for .dll. 

If the Userchoice file doesn’t show there, you could try to unassociate the file type, by using the procedure recommended in the link below.  As usual when you are making changes like this, it is important to backup your registry and also the registry entry you are changing: 

http://www.sevenforums.com/tutorials/178296-file-extension-type-unassociate.html

Once you have run process shown in link, try to run the file provided in previous comments to fix the association problem.  As another option, you could try running the sfc /scannow command in command prompt.