Windows installer 0.145.0 missing codex-windows-sandbox-setup.exe

What version of the Codex App are you using (From “About Codex” dialog)?

Codex CLI 0.145.0

What subscription do you have?

Pro

What platform is your computer?

Windows 11 build 26200

What issue are you seeing?

Environment

• Windows 11
• Codex CLI 0.145.0

Problem

Managed sandbox operations consistently fail with:

orchestrator_helper_launch_failed:
setup refresh failed to launch helper:
helper=codex-windows-sandbox-setup.exe
error=program not found

I reinstalled Codex using the official installer.

Installation completed successfully, but the helper executable is still missing.

Diagnostics

Searching the installation directory:

Get-ChildItem -LiteralPath "$env:LOCALAPPDATA\Programs\OpenAI\Codex" -Recurse |
Where-Object { $_.Name -eq "codex-windows-sandbox-setup.exe" }

returns no results.

The bin directory contains only:

codex.exe
codex-code-mode-host.exe

The sandbox log repeatedly shows:

setup refresh: spawning codex-windows-sandbox-setup.exe
error=program not found

Result

• Read-only commands sometimes work.
• Any managed sandbox write or apply_patch eventually fails because the helper cannot be launched.

Question

Is the Windows installer missing codex-windows-sandbox-setup.exe, or has its location/name changed?

What steps can reproduce the bug?

The installer completed successfully.
codex-windows-sandbox-setup.exe is not found anywhere in the installation.
The sandbox log repeatedly reports:
orchestrator_helper_launch_failed
helper=codex-windows-sandbox-setup.exe
error=program not found
The bin directory contains only:
codex.exe
codex-code-mode-host.exe

What is the expected behavior?

not to spend a full day trying to figure out why the sandbox will not work

Additional information

_No response_