Windows-Containers DISM Languages and International Servicing Command-Line Options not working with offline image inside container

I have been using the guidance in https://github.com/microsoft/Windows-Containers/issues/494 to update a WinPE image.

The Add-Package works to add features and updates.

I have tried to change the language but it returns an error.

Error: 87                                                                                                                                                                                                                                                                                                                                                                                                             
                                                                                                                                                                                                                                                                                                                                                                                                                      
                                                                                                                                                                                                                                                                                                                                                                                                                      
ERROR: dism.exe has encountered an error.

In the dism.log are entries:

Error                 DISM   DISM Intl Provider: PID=1112 TID=1572  - CDISMIntlManager::DisplayOfflineAPIError
Error                 DISM   DISM Intl Provider: PID=1112 TID=1572 ERROR: API call failed with following error(s): 183. - CDISMIntlManager::DisplayAPIErrorMessage
Error                 DISM   DISM Intl Provider: PID=1112 TID=1572 
	183 = Cannot create a file when that file already exists.

 - CDISMIntlManager::DisplayAPIErrorMessage
Error                 DISM   DISM Intl Provider: PID=1112 TID=1572 
ERROR: dism.exe has encountered an error.
 - CDISMIntlManager::DisplayOfflineAPIError

Mar 23 '25 22:03 bewster

Thank you for creating an Issue. Please note that GitHub is not an official channel for Microsoft support requests. To create an official support request, please open a ticket here. Microsoft and the GitHub Community strive to provide a best effort in answering questions and supporting Issues on GitHub.

Mar 23 '25 22:03 github-actions[bot]

Hi, can you provide more details on your system configuration like:

container image version
isolation mode
container runtime
host OS version

Mar 31 '25 21:03 ntrappe-msft

container image version: mcr.microsoft.com/windows/servercore:ltsc2025, 10.0.26100.3476 isolation mode: whatever the default is container runtime: Docker Desktop 4.39.0 host OS version: Windows 11 Pro 24H2 (26100.3476)

Point me in the right direction if that information not what you are asking for.

Mar 31 '25 21:03 bewster

This issue has been open for 30 days with no updates. no assignees, please provide an update or close this issue.

Nothing further to currently add. Just commenting to [hopefully] keep it open.

May 01 '25 14:05 bewster

We haven't had the chance to look at this just yet given our large backlog. We'll let you know as soon as we have. Thanks.

May 13 '25 19:05 ntrappe-msft

If I understood correctly, using the recommendations in this link (https://github.com/microsoft/Windows-Containers/issues/494) allowed you to tweak a WinPE image from within a container, right? That is good to hear.

Can you provide the specific repro steps for what is failing for you now?

Thanks!

Jun 02 '25 16:06 fjs4

So I take one of the latest WinPE images, based on Windows 11 and extract it using:

dism /Apply-Image /ImageFile:winpe.wim /ApplyDir:c:\MOUNT_DIR /Index:1

I add the GB Language Pack:

dism /Add-Package /Image:c:\MOUNT_DIR /PackagePath:"C:\Program Files (x86)\Windows Kits\10\Assessment and Deployment Kit\Windows Preinstallation Environment\amd64\WinPE_OCs\en-gb\lp.cab"

Then try and set the language:

dism /Set-AllIntl:en-GB /Image:c:\MOUNT_DIR

This results in the error message.

Jun 08 '25 21:06 bewster