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I have been using a the wsusscn2.cab file and WUA in a script for years to determine the latest non-superseded applicable UpdatesIDs so that I can download them and bring them to my offline networks. Now that we are moving to Windows 11 it seems to me that the wsusscn2.cab file does not have any of the Windows 11 updates in there. For example when I query the package.xml contained in the .cab for the update KB5039212 I am unable to find the update ID faaf2140-998d-4955-a871-9b269ea48b0e which corresponds to the Windows 11 June 2024 cumulative update for 23H2 systems (https://www.catalog.update.microsoft.com/Search.aspx?q=faaf2140-998d-4955-a871-9b269ea48b0e). The only update returned for this KB from the wsusscn2.cab file is for Windows 10 and later GDR-DU.
Unfortunately, due to the constraints placed on me I am unable to use other methods to update these machines, such as a WSUS server, and I'm not allowed to connect them to the internet. I understand that I can just use the latest cumulative, but would like a more robust script that identifies all the updates wanted by the OS including updates such as the .NET Framework updates (which actually do show in the wsusscn2.cab file) and any others that MS adds to the catalog that would be applicable.
Does anyone know if there is an alternative to the WSUSSCN2.cab for Windows 11 to detected needed updates or some other method to detected the missing updates?
This has been resolved. It appears that the latest MSU file is now included in the wsusscn2.cab file. Thanks Microsoft!!!
And.....its gone. MS added an entry in the October wsusscn2.cab file for Win 11 24H2 (but not 23H2) which when queried an MSU file download location was returned, but appears they have decided it was too much of a good thing. They are once again not adding entries for Win 11 23H2 and 24H2. Sad.
Microsoft has announced a smaller version of the WSUS Scan Cab (which is half the size of the current one) that works on all supported versions of Windows in all known offline scan scenarios. You might want to check if this new version includes the Windows 11 updates you need. https://techcommunity.microsoft.com/t5/windows-it-pro-blog/announcing-a-smaller-wsus-scan-cab/ba-p/2928256
|-------------------------------->>> If the reply was helpful please don't forget to upvote and/or accept as answer, thank you
Unfortunately, this is the version I have been using the last few years :( . If you extract the .cab and filter the contents of the package.xml inside file against the updateIDs from the online catalog here: https://www.catalog.update.microsoft.com/Search.aspx?q=2024-06%20WIndows%2011 you won't find any updateIDs for the 22H2 and 23H2 versions of Windows 11. However, everything else in that online catalog search is contained in the .cab file.
So there is "some" Windows 11 updates, just not 22H2 and 23H2 updates.
Sorry this was a duplicated response, took forever for the first response to post.
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@ArmoredEmu01, did you try the latest Wsusscn2.cab file?
Yes, that is the one I am using. Consider this little code snippet, it shows the issue I am having maybe a bit better (also shows the URL I am using to download the wsusscn2.cab file). If you run the below with the $updateID = 15cddec9-ad48-4f0f-bc76-0f60359a5f6d which corresponds to the Windows 11 23H2 update KB5039212 in the online catalog here. There isn't an update object found.
However, if you use the $updateID = "71cde03c-7f0e-4c70-a704-2d2b1d501843" which corresponds to a different Windows 11 update for non 22 and 23 H2 versions from the online catalog here it will return an update, but this update is not applicable to 22H2 and 23H2 versions.
# Set the update ID.
$updateID = "71cde03c-7f0e-4c70-a704-2d2b1d501843"
$tmpDir = Join-Path $PSScriptRoot "tmp"
$catalogPath = Join-Path $tmpDir "wsusscn2.cab"
$packageCabFile = Join-Path $tmpDir "package.cab"
$packageXMLFile = Join-Path $tmpDir "package.xml"
$downloadURL = "http://download.windowsupdate.com/microsoftupdate/v6/wsusscan/wsusscn2.cab"
if (-not(Test-path -path $tmpDir)){
New-Item -path $tmpDir -ItemType "directory"
}
$ProgressPreference = "silentlyContinue"
Invoke-RestMethod -Uri $downloadURL -OutFile $catalogPath
$ProgressPreference = "continue"
expand.exe $catalogPath -F:"$(Split-Path $packageCabFile -leaf)" $tmpDir
expand.exe $packageCabFile $packageXMLFile
[xml]$package = Get-Content -path $packageXMLFile
$updateData = $package.OfflineSyncPackage.updates.update | Where-Object {$_.updateID -eq $updateID}
Write-output $updateData
I am trying to determine why the 22H2 and 23H2 versions don't appear in this file.
Hello @ArmoredEmu01,The Wsusscn2.cab file may not be updated for the latest system version.
You can Send feedback to Microsoft with the Feedback Hub app about the issue.
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Where can you find the latest wsusscn2.cab file? People say it is updated every month but where? Ive read multiple documents and links but I never get a straight answer. Does this new cab file have the latest win 10 and win 11?
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Can you get wsusscn2.cab to work properly on your end with a windows 11?
It seems that there are problems
For my part, the updates appear duplicated.
it works very well in windows 10
I'm trying to understand and find what's not working well.
We have not been able to as of yet. We are using wsusscn2.cab file a bit differently though. We aren't using it to scan the OS for missing updates. We are just using it to parse through the package.xml contained in the wsusscn2.cab file and get a list of the latest (non-superseded) updates and their download links for each product family we work with then download them to a single piece of media that contains all the latest updates we might ever need for all the products.
For my issue, I think there is a difference in how things are organized\bundled in the package.xml. I don't know the exact the difference yet, but the file payloads appear to be bundled differently than they used to be. Used to be that the bundling revision ID would reference the update's KB cab\msu file itself, now it is referencing an ssu file.
For example this month the old logic that used to work on Windows 10 when applied to Windows 11 24H2 returns the download link for
ssu-26100.2592-x64-express_64e3b9a518e769d475002515b1c58ca72ff8bd23.cab
instead of
windows11.0-kb5048667-x64_d4ad0ca69de9a02bc356757581e0e0d6960c9f93.msu
The old logic worked perfectly on Windows 11 24H2 in October, but hasn't since or before.
I looked into your duplicate issue a bit, didn't see anything that stood out as to why this would happen with what I saw, but we are working from two different sides of this process.
Finnially my fundamental problem is here:
https://learn.microsoft.com/en-us/answers/questions/2129669/iupdate2-copytocache-method-windows-11
Do you use copytocache in your operating mode?
If not, do you use an alternative?