`connect ENOENT \\.\pipe\PSES_fskvz4fs.gy4` appears, until VSC has been reinvoked, when a `.PS1` file is invoked in VSC, after cancelling a shutdown that was caused by a PS1 file, which was invoked by VSC.

Prerequisites

• I have written a descriptive issue title.
• I have searched all open and closed issues to ensure it has not already been reported.
• I have read the troubleshooting guide.
• I am sure this issue is with the extension itself and does not reproduce in a standalone PowerShell instance.
• I have verified that I am using the latest version of Visual Studio Code and the PowerShell extension.
• If this is a security issue, I have read the security issue reporting guidance.

Summary

As was originally reported at microsoft/vscode/issues/244192:

connect ENOENT \\.\pipe\PSES_fskvz4fs.gy4 appears when a .PS1 file is invoked in VSC, after cancelling a shutdown that was caused by a PS1 file, which was invoked by VSC. The error ceases to appear after VSC has been (closed, then) reinvoked.

PowerShell Version

I did not collect this at the time. However, if relevant to issues/4332, it may contain them.

Extension Version

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Logs

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Visual Studio Code Version

Version: 1.98.2 (user setup)
Commit: ddc367ed5c8936efe395cffeec279b04ffd7db78
Date: 2025-03-12T13:32:45.399Z
Electron: 34.2.0
ElectronBuildId: 11161602
Chromium: 132.0.6834.196
Node.js: 20.18.2
V8: 13.2.152.36-electron.0
OS: Windows_NT x64 10.0.26120

Steps to Reproduce

1. Invoke a .PS1 file containing shutdown /r /fw via VSC's GUI: ^1

   #!/usr/bin/env pwsh
   #Requires -PSEdition 'Core'
   #Requires -Version 7.5.0
   If ([OperatingSystem]::IsWindows() -Eq $True) {
   	sudo shutdown /r /fw /t 0
   }
   

2. Cancel when it prompts the user to, because of unkillable processes.

3. Reinvoke the file. It causes the undermentioned:

   

4. WM_CLOSE code. ^3

5. Invoke code.

6. Invoke the file again. It'll function.

Start by reproducing the Windows VS Code sequence in the issue: invoke the .PS1 file, cancel the shutdown, reinvoke it, close VS Code with WM_CLOSE, and reopen it. Inspect the extension's available logs and process or pipe handling around the failure; done means the file can be reinvoked after cancelling shutdown without the connect ENOENT error.