Import Default File Associations XML

I'm not sure but i put my "OEMDefaultAssociations.xml" to here "C:\Windows\System32"

Mine sets classic photo viever - bsplayer - adobeacrobat....

I don't think it works perfectly tho
 
Already replied on email, but didn't know there is a post.
Basically:

It's not yet in the tool, you can load an image in NTLite, then right-click on it from the Source page and choose Explore Mounted Directory.
Close that Explorer popup and go to command line and:
Dism.exe /Image:C:\test\offline /Import-DefaultAppAssociations:F:\AppAssociations.xml

replace bolded with the Mounted Directory.
Once done, go to NTLite Source page and Unload + tick Save changes. Or when using NTLite to do something else go to Apply page and save like that with other changes.
 
nuhi said:
Already replied on email, but didn't know there is a post.
Basically:

It's not yet in the tool, you can load an image in NTLite, then right-click on it from the Source page and choose Explore Mounted Directory.
Close that Explorer popup and go to command line and:
Dism.exe /Image:C:\test\offline /Import-DefaultAppAssociations:F:\AppAssociations.xml

replace bolded with the Mounted Directory.
Once done, go to NTLite Source page and Unload + tick Save changes. Or when using NTLite to do something else go to Apply page and save like that with other changes.
Click to expand...
Just a advice to the user , with all tips provided by nuhi , you can also edit a few files too. But, recommend to you download a reg file from ten forums or ask vg to restore permissions for TrustedInstaller, I don't know if using dism will overwrite the permission needed to replace the files, so keep in mind if change something in Explorer Mount Directory recover to default state so if you decide share with someone will not have anything related to your computer.
 
ege914 said:
I'm not sure but i put my "OEMDefaultAssociations.xml" to here "C:\Windows\System32"

Mine sets classic photo viever - bsplayer - adobeacrobat....

I don't think it works perfectly tho
Click to expand...
I also check the Ghost Spectre and he applies this OEMDefautlAssociations.xml through a folder inside of sources as well, will be something like this
Your ISO Folder\sources\$OEM$\$1\Windows\System32 - In System32 folder, paste the OEMDefautlAssociations.xml (keep mind to test in a virtual machine, to see if everything works).
 
lenkarin said:
I also check the Ghost Spectre and he applies this OEMDefautlAssociations.xml through a folder inside of sources as well, will be something like this
Your ISO Folder\sources\$OEM$\$1\Windows\System32 - In System32 folder, paste the OEMDefautlAssociations.xml
Click to expand...
I have tested this months ago and it doesn't works this way, Windows setup restores the Ms file association, I guess the DISM integration register/replace the existing ones.
 
This is another Windows myth that no longer works...

DISM-based default file associations are completely useless on most W10 and all W11 releases. User provisioning from UWP (Store) apps destroys anything you do, since it runs last and doesn't care about the system defaults.

Run DISM in Post-Setup, to capture file associations right after install:
Code: 
Dism.exe /Online /Export-DefaultAppAssociations:"C:\Post-Setup-AppAssociations.xml"

Run DISM after you log on:
Code: 
Dism.exe /Online /Export-DefaultAppAssociations:"C:\Post-Provisioning-AppAssociations.xml"

Compare them:
Code: 
10/27/2022  09:29 PM            11,918 Post-Provisioning-AppAssociations.xml
10/27/2022  09:14 PM             2,338 Post-Setup-AppAssociations.xml

Appx packages cannot make profile changes until the first user gets provisioned (logs on).

If you change your file associations, it only applies to your AppDataLocal. None of it gets updated to DISM's copy, because UWP preferences are per-user and not global. Remember uninstalling UWP apps for yourself doesn't impact another local user who has the same app installed.

Therefore on any Windows with provisioned UWP apps, the default associations are basically ignored.
I have no idea why MS doesn't clean up their docs, to say "it stopped working in Windows 1607" (or whatever).
 

Attachments

Does this apply to LTSC also garlin?

Basically i am looking for easiest way to associate XML by default with notepad instead of abandoned IE.
 
chrcol said:
Does this apply to LTSC also garlin?

Basically i am looking for easiest way to associate XML by default with notepad instead of abandoned IE.
Click to expand...
Hi chrcol Yes this apply to LTSC version too, since the versions of LTSC and Stock Windows receive the same approach for each component except for the different scenarios of each edition of windows. So, the components works the same except for updates LTSC receive only security updates.
 
Run SetUserFTA from Post-Setup (User) to apply a personal file association. You can specify multiple FTA's from a config file.
This tool is required because Windows now protects FTA's from getting hijacked by random malware.
 
garlin said:
Run SetUserFTA from Post-Setup (User) to apply a personal file association. You can specify multiple FTA's from a config file.
This tool is required because Windows now protects FTA's from getting hijacked by random malware.
Click to expand...
Tried it out, very simple and effective tool, also the get syntax is useful as well for knowing what to use.

Also yep realised its protected when I tried to use registry changes viewer to analyse what happens and the reg import failed with a hash as one of the monitored changes. Although I did manage to assign 7zip associations via registry, so seems to be only certain extensions that are protected.

Noticed this after I successfully tested it in elevated command prompt. UAC elevation seems ok though, so I guess he just means dont run outside of being interactively logged in.

IMPORTANT: SetUserFTA must run in the users context – no administrative or system privileges. sometimes the timing can be important aswell – make sure it runs after the profile of the user is loaded.
Click to expand...
 
Last edited:
Correct. Timing is everything, if you apply changes too early then Windows can wipe out your edits. W10/11 now overrides many user preferences when provisioning a new account, so you have to move those reg changes to Post-Setup (User).

Post-Setup (User) runs your actions with Admin privileges, but inside your user context.
 
Hi, I have come here trying to find solution to what I am looking for in Windows 11. In my case in the post-installation the applications are installed after the first boot using Winget and Chocolatey in a command script I have made. Once all the files are associated manually I have exported with DISM to the MyDefaultAppAssociations.xml file.
According to what I read in Microsoft when importing with DISM it does not work for the current user, only for the new ones that are going to be created later.
Then it occurs to me to import with DISM in SetupComplete.cmd when the first user has not yet been created.
It doesn't work, I think the problem is that the applications have not been installed yet.
Maybe there is a way to associate the files in the current user via command line with administrator privileges, using the exported file or otherwise.
 
I use this (option not present in NTLite) and it works very well with 24h2 (and 23h2) :

To export : Dism.exe /Online /Export-DefaultAppAssociations:"D:\M11W\AppAssociations.xml"
To apply in mounted image : Dism.exe /Image:D:\M11W\Mount /Import-DefaultAppAssociations:D:\M11W\AppAssociations.xml

In bold, the path of your file
In italics the path of the mounted image
 
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