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Vista - Unassociate File Extention Type

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Unassociate File Extention Type

How to Unassociate a File Extension Type in Vista
Published by Brink
09-13-2007

How to Unassociate a File Extension Type in Vista
Information
  This will show you how to set a file extension to be associated with nothing instead of some default program without having to delete the file extension unless you wanted to.
NOTE
  This is a standalone EXE program that does not install to your computer.

CREDIT TO:

Ramesh Srinivasan - www.winhelponline.com/articles/231/1/
RELATED LINKS:



Here's How:
1. Download the free unassoc.zip file and save it to your desktop.

2. Right click on unassoc.zip (On Desktop) and click Open.

3. Extract both files to the desktop. (See screenshot below)

4. Click on the Unassoc.exe icon to run the program.
NOTE: I would recommend that you put these two files in a new folder and save them in your C:\Program Files folder, then make a shortcut for the Unassoc.exe to use.
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5. Click on Continue in the UAC prompt.

6. To Unassociate a File Extension Type -
A) Click on a file extension type from the list in the left pane to select it. (See screenshot below step 7)

B) Click on Remove file association (User).
7. To Delete a File Extension Type -
A) Click on a file extension type from the list in the left pane to select it. (See screenshot)

B) Click on Delete file type.
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8. Close program when done.
That's it,
Shawn

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Applies to
All Vista Versions
64 Bit & 32 Bit

Old 07-04-2008  
elisabeth999


Vista Home Premium 32bit
 
 

Re: Unassociate File Extention Type

Hi, I have been trying desperately for 3 hours to remove the association of the file type .INS from the program "Inspiration" (Document Mapping) so that I can run an .INS file as an "install shield script" file. I tried your tutorial and, sure enough, in the control panel, the ".INS" file type is no longer associated with Inspiration. However, when I look at my downloaded copy of a new program that I want to install that includes the .INS file type, it is still associated with Inspiration! It is EVIL! Can you help me? Thanks!

My System SpecsSystem Spec
Old 07-04-2008  
elisabeth999


Vista Home Premium 32bit
 
 

Re: Unassociate File Extention Type

Sorry, me again, I just realized that I deleted the file extension instead of unassociating it. Is there any way I can fix this??? Thanks, --e.
My System SpecsSystem Spec
Old 07-05-2008  
Brink


Vista x64 Ultimate SP2, Windows 7 Ultimate x64
 
 

Re: Unassociate File Extention Type

Hi Elisabeth,

Welcome to Vista Forums.

If you installed a program that added the .INS extension, then you can reinstall it to add it back so you can unassociate it.

You can also right click on the .INS file and use Open With to select a EXE program to use to open it with.

Default Programs

Hope this helps,
Shawn
My System SpecsSystem Spec
Old 01-31-2009  
mansrm81


Vista Ultimate 64bit SP2/
 
 

Re: Unassociate File Extention Type

When I run the program and find the file I want to unassociate the Remove file association (User) is grayed out. What else can I do do unassociate.
My System SpecsSystem Spec
Old 01-31-2009  
Brink


Vista x64 Ultimate SP2, Windows 7 Ultimate x64
 
 

Re: Unassociate File Extention Type

Hello Mansrm. What file extension are you wanting to unassociate?
My System SpecsSystem Spec
Old 01-31-2009  
mansrm81


Vista Ultimate 64bit SP2/
 
 

Re: Unassociate File Extention Type

.001 from 7-zip I didn't want to always open with that program.
My System SpecsSystem Spec
Old 01-31-2009  
Brink


Vista x64 Ultimate SP2, Windows 7 Ultimate x64
 
 

Re: Unassociate File Extention Type

.001 from 7-Zip? I do not see a file extension listed for that in 7-Zip.


Anyways, you can unassociate it by:
My System SpecsSystem Spec
Old 01-31-2009  
mansrm81


Vista Ultimate 64bit SP2/
 
 

Re: Unassociate File Extention Type

I did the open with and associated it that way.
My System SpecsSystem Spec
Old 01-31-2009  
Brink


Vista x64 Ultimate SP2, Windows 7 Ultimate x64
 
 

Re: Unassociate File Extention Type

OK, I'm glad that you got it sorted out.
My System SpecsSystem Spec
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