Error installing Server Core FOD on WS 2025 Server Core preview

[0rinThomas]

On a VM that has internet connectivity I tried the following command:

Add-WindowsCapability -Online -Name ServerCore.AppCompatibility~~~~0.0.1.0

I got the following result across two different VMs. Has anyone else seen this behavior?

[#2]

Add-WindowsCapability -Online -Name ServerCore.AppCompatibility~~~~0.0.1.0 -Source Z:\LanguagesAndOptionalFeatures\ -LimitAccess
Download the Microsoft Server Language and Optional Features Preview - Build 26257 English
use the ISO Images to install.

[#3]

The command provided here: https://learn.microsoft.com/en-us/windows-server/get-started/server-core-app-compatibility-feature-o... Add-WindowsCapability -Online -Name ServerCore.AppCompatibility~~~~0.0.1.0 Works as long as the Server Core 2022 server has internet connectivity. Is this just a matter of waiting until Server 2025 RTMs for the online method to work (without downloading & mounting the ISO)?