Evergreen Webview2 Instant

: Use CreateCoreWebView2Environment (C++) or EnsureCoreWebView2Async (.NET) without specifying a browser executable folder. This tells the app to look for the system-installed Evergreen runtime.

: Uses Microsoft Edge (Chromium-based) to render HTML, CSS, and JavaScript within native apps.

So go ahead—build that desktop wrapper. Integrate that OAuth flow. Render that complex report. Let Microsoft handle the runtime. Because the web changes every day. Your app should too. evergreen webview2

Microsoft WebView2 resolves this tension by allowing developers to embed modern web tech—HTML, CSS, and JavaScript—directly into native apps using the Microsoft Edge (Chromium) rendering engine. At the core of WebView2’s long-term viability is its , a deployment model that shifts the burden of maintenance, security, and updates from the application developer to Microsoft. Understanding the WebView2 Distribution Models

Evergreen WebView2 Runtime is a distribution model for the Microsoft Edge WebView2 So go ahead—build that desktop wrapper

Managing WebView2 instances involves several challenges, including:

| Feature | Evergreen | Fixed Version | |---------|-----------|---------------| | | Automatic via Windows Update | Manual—requires app recompilation | | Disk Space | Shared across all WebView2 apps | Separate copy per app | | Version Control | App cannot specify a particular version | Full control over runtime version | | Internet Requirement | Bootstrapper requires internet (offline installer available) | No internet required after packaging | | Recommended For | Most applications | Strict compatibility requirements | | OS Integration | Preinstalled on Windows 11 devices | Standalone packaged component | | Installation Method | Bootstrapper or offline installer | Bundled with application package | Let Microsoft handle the runtime

Future work on Evergreen WebView2 includes:

For developers looking to integrate the Evergreen Runtime deployment directly into their application's installer, Microsoft provides several official sample projects:

Instead of checking version numbers, use JavaScript feature detection to ensure the environment supports the APIs you need. Conclusion

Multiple apps share a single Evergreen WebView2 Runtime installation rather than each bundling a 300MB+ browser engine.