Windows Version

Microsoft Windows [Version 10.0.22631.4460]

WSL Version

2.3.24.0

Are you using WSL 1 or WSL 2?

• WSL 2
• WSL 1

Kernel Version

5.15.153.1-2

Distro Version

No response

Other Software

No response

Repro Steps

1. Run wsl --import-in-place Ubuntu C:\Users\User\Desktop\Ubuntu-24.04-LTS-x86_64.vhdx
   • Observe that WSLPluginAPI_OnDistributionRegistered is not invoked
2. Check and observed that the distribution is in fact registered: wsl --list
3. Run wsl --distribution Ubuntu (checking if the distribution registration callout is invoked later)
   • Observe that the WSLPluginAPI_OnDistributionRegistered is not invoked
   • Observe that WSLPluginAPI_OnDistributionStarted is invoked without any prior WSLPluginAPI_OnDistributionRegistered
4. Run wsl --unregister Ubuntu
   • Observed that the OnDistributionUnregistered is invoked

In contrast, using --import invokes the distribution registered plugin callout immediately. This behavior means that using --import-in-place does not provide visibility of a distribution being registered to the plugin. The plugin is only informed of a distribution being unregistered when --import-in-place is used. Also note that --import invokes the plugin callout immediately, it does not require the distribution be started.

Expected Behavior

The --import-in-place command should result in WSLPluginAPI_OnDistributionRegistered being invoked just as --import does.

Actual Behavior

The --import-in-place command never notifies the plugin of distribution registration.

Diagnostic Logs

No response