The offline installer supports advanced command-line switches that enable deep control:
When building your installer (MSI, ClickOnce, or Squirrel), you must ensure the WebView2Runtime folder is included in the output. microsoft edge webview2 offline installer
Then your app can to that exact folder via CreateWebView2EnvironmentWithOptions() . This gives: microsoft edge webview2 offline installer
This ensures the runtime is already present when your Electron-like desktop app (C#, WinUI, WinForms, WPF, or even old MFC) calls WebView2Environment.CreateAsync() — . microsoft edge webview2 offline installer
: Some users have reported that the x64 installer can overwrite x86 files if both are installed sequentially, potentially leading to a "white screen" hang in applications that specifically require a 32-bit runtime.
InitializeComponent();
Here is a code snippet for C# ensuring the app uses the local offline runtime: