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cmd.exe console window flashes: CC Switch black window flashing

Quick fix

Update to 4.0 or the latest version and retry. If it persists, submit the version, system details, reproduction steps, and logs or screenshots.

Symptom

Section titled “Symptom”
Error output
On Windows, CC Switch repeatedly pops up a black `cmd.exe` console window that briefly flashes on screen.

Cause

Section titled “Cause”

On Windows, CC Switch 3.16.3 detects the versions of CLI tools such as Claude Code, Codex, Gemini CLI, and OpenCode through `cmd /c "xxx --version"`. When CC Switch starts, the About page opens, or detection runs again during operation, a black console window briefly appears if the `cmd.exe` child process is created without `CREATE_NO_WINDOW`.

The issue was closed after timing out because no new reproduction details were provided, not because a fix was confirmed. The maintainer said 4.0 substantially refactored the relevant functionality and recommended updating and retrying, but the thread contains no user confirmation that 4.0 resolved the problem.

Fix

Section titled “Fix”

  1. Update CC Switch to 4.0 or the latest version, restart Windows, and open the About page to check whether the black `cmd.exe` window still flashes.

  2. If the problem persists, provide the CC Switch version, Windows system information, full reproduction steps, and relevant logs or screenshots, then reopen the issue.

  3. If maintaining the CC Switch process-detection code, set `CREATE_NO_WINDOW` on `std::process::Command` when creating the version-detection child process on Windows. The thread provides no actual source file path and does not confirm that this change was merged.

Affected Versions

Section titled “Affected Versions”
ToolCC Switch
Version3.16.3（报告受影响）
PlatformsWindows

Source Issues

Section titled “Source Issues”

This page is distilled from 1 real issues

FAQ

Section titled “FAQ”

(No FAQ yet)

Section titled “Related problems”
API Error: Connection refusedIn Windows WSL2 NAT mode, use socat to forward WSL's 127.0.0.1:15721 to the host CC Switch routing port.2 issues merged[DISCUSS] Support for pi coding agentThis is a feature request merged into tracking issue #1855; the original post provides no verifiable solution.1 issues mergedCannot start normally: window unresponsive, system requires force quitUpdate CC Switch to 4.0 or the latest version and retry. If it persists, provide the full version, steps, logs, and screenshots.1 issues merged

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