Londopy

Londopy / capture-bypass

Public

DLL injection tool to bypass screen-capture protection on Windows 10/11

19
0
69% credibility
Found May 20, 2026 at 19 stars -- GitGems finds repos before they trend. Get early access to the next one.
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AI Analysis
Rust
AI Summary

Capture Bypass is a Windows tool that removes screen capture protection from applications. Some apps (media players, games, video software) intentionally block screen recording — when you try to capture them with OBS or take a screenshot, they show up as black boxes. This tool lets you remove that block so you can record or share your screen normally. It works by sending a small helper into the protected app that tells Windows to allow capture, and includes both a simple one-time mode and a persistent mode for apps that keep re-applying protection.

How It Works

1
📺 You try to record your screen

You open OBS to stream a game or record a tutorial, but one of your windows just shows up as a black box.

2
🔍 You discover why it's black

The app is actively telling Windows 'don't let anyone record me' — this is a built-in Windows feature some apps use to protect their content.

3
⬇️ You download Capture Bypass

You grab the installer from the releases page — no programming tools needed, just a simple Windows setup.

4
🛡️ You remove the protection

You launch the app, see all your windows listed with their protection status, and click 'Strip Protection' on the black window.

5
Some apps fight back
🎯
One-shot mode

For apps that only apply protection once — fast and done

🔄
Persistent mode

For stubborn apps — automatically removes protection every half-second

6
🎉 Everything works now

OBS captures the window normally, screenshots work, screen sharing shows the content — you're back in business.

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AI-Generated Review

What is capture-bypass?

This is a Windows utility that strips screen capture protection from applications. When apps like Netflix or certain games block OBS, screenshots, or screen sharing, they use a Windows API called SetWindowDisplayAffinity. This tool injects a DLL into the target process to call that same API and disable protection, making windows visible again to capture tools.

The Rust implementation ships with a GUI for point-and-click use, a CLI for scripting and automation, and a stress tester to verify injection behavior. Both x64 and ARM64 builds are available, along with 32-bit support for legacy processes.

Why is it gaining traction?

The persistent mode stands out - it actively monitors protected windows and strips them every 500ms, which matters for apps that repeatedly re-apply protection. The stealth injection copies the DLL to a temporary location with a random name before loading it, keeping the target process's module list clean. The auto-inject feature runs in the background, monitoring for newly protected windows and escalating to persistent mode automatically when apps fight back. A built-in stress tester lets you verify injection behavior without external tooling.

Who should use this?

Streamers frustrated by black windows in OBS will find this fixes the symptom rather than workarounds. Developers building or testing capture-blocking applications can use the stress tester to probe their protection mechanisms. Power users who need to screenshot or screen-record protected apps get a dedicated tool. IT professionals managing software deployments may find the CLI useful for scripted injection across systems.

Verdict

For its specific purpose, this works reliably with solid documentation and a thoughtful feature set - the persistent mode and stealth injection are genuinely useful. However, the credibility score of 0.7% and only 19 stars reflect a young, untested project with limited community scrutiny. Windows Defender flags the payload DLLs as suspicious (false positive, but unavoidable), and the tool's nature means it will never be a mainstream solution. Worth trying if you have a legitimate need, but audit it yourself before trusting it in production.

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