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How to: Run an app with the previous WebView2 Runtime version

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David Risney edited this page Jan 26, 2023 · 1 revision

It is sometimes useful when trying to determine if a bug caused by changes to your app or changes to the WebView2 Runtime, to be able to try out your app with a previous version of the WebView2 Runtime. The WebView2 team exposes the previous major version of the WebView2 Runtime for download as a fixed version cab. These steps should match what is described in the Fixed Version Details documentation.

  1. Navigate to the Download the WebView2 Runtime page.
  2. Select the appropriate version, CPU architecture, and press download. This will download a cab file containing the files for the specified version and CPU architecture of the WebView2 Runtime.
  3. Once downloaded, open a command prompt and run
expand {path to the package} -F:* {path to the destination folder}

For example, I downloaded the cab to my downloads folder and expanded to a folder within the downloads folder via:

expand C:\users\dave\downloads\Microsoft.WebView2.FixedVersionRuntime.109.0.1518.69.x64.cab -F:* C:\users\dave\downloads

Which puts the older version of the WebView2 Runtime into a subfolder in downloads C:\users\dave\downloads\Microsoft.WebView2.FixedVersionRuntime.109.0.1518.69.x64

  1. Now follow these directions on how to run an app with a custom WebView2 Runtime folder and use the subfolder created in the previous step containing your older version of the WebView2 Runtime as the custom WebView2 Runtime folder.
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