Codex Desktop crashes/restarts when opening /abs/path/E:/... Markdown file with default Windows app

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

OpenAI.Codex_26.623.8305.0

What subscription do you have?

ChatGPT Team

What platform is your computer?

Microsoft Windows NT 10.0.26100.0 x64

What issue are you seeing?

Codex Desktop version: OpenAI.Codex_26.623.8305.0

Issue:
When I click a local Markdown link in Codex with a path like:

/abs/path/E:/my2/SIM-Recon-Workspace/RIM/docs/superpowers/specs/2026-07-05-rim-estimate-pgxy-dataout-design.md

and choose to open it with the default app, Codex Desktop restarts / flashes / exits and comes back.

My default .md application is Typora:

D:\Program Files\typora_1.11.6_Green_64Bit\Typora\Typora.exe "%1"

If I open the same file directly with the real Windows path, Typora works normally:

E:\my2\SIM-Recon-Workspace\RIM\docs\superpowers\specs\2026-07-05-rim-estimate-pgxy-dataout-design.md

So the file itself and the Typora file association seem to be OK.

Observed behavior:

• Clicking /abs/path/E:/... from Codex and opening with the default app causes Codex Desktop to restart / flash.
• Windows does not show a Codex AppCrash.
• WebView exit type appears to be Normal.

Expected behavior:
Codex should normalize the internal path:

/abs/path/E:/my2/...

to a valid Windows path:

E:\my2\...

before passing it to Windows ShellExecute / the default application.

Possible cause:
Codex Desktop may be passing the /abs/path/E:/... pseudo path directly to Windows or to the default app, instead of converting it back to a valid Windows path first.

What steps can reproduce the bug?

如果你想更短，可以填这版：

### Steps to reproduce

1. Use Codex Desktop on Windows.
2. Click a local Markdown file link generated by Codex, using a path like:

   `/abs/path/E:/my2/SIM-Recon-Workspace/RIM/docs/superpowers/specs/2026-07-05-rim-estimate-pgxy-dataout-design.md`

3. Choose to open it with the default Windows app.
4. The default `.md` app is Typora:

   `D:\Program Files\typora_1.11.6_Green_64Bit\Typora\Typora.exe "%1"`

5. Codex Desktop restarts / flashes / exits and then comes back.

### Expected behavior

Codex should convert `/abs/path/E:/...` to the real Windows path `E:\...` before opening the file with the default app.

### Actual behavior

Codex Desktop appears to pass the `/abs/path/E:/...` pseudo path directly to Windows / the default app, which causes Codex Desktop to restart or flash.

Opening the same file directly with the real Windows path works normally in Typora.

### Additional info

- Codex Desktop version: `OpenAI.Codex_26.623.8305.0`
- Windows does not show a Codex AppCrash.
- WebView exit type appears to be `Normal`.
- Session ID: not available.
- Token limit usage: not applicable.
- Context window usage: not applicable.

### What is the expected behavior?

_No response_

### Additional information

_No response_