Auth0 WinForms Integration

Add Auth0 authentication to Windows Forms (WinForms) desktop applications. This skill integrates the Auth0.OidcClient.WinForms NuGet package which uses WebView2 to display the Auth0 login page in a popup form for secure OIDC-based login and logout flows with PKCE.

The SDK performs WebAuth (OIDC authorization code flow with PKCE) by opening the Auth0 Universal Login page inside a WebView2 control hosted in a WinForms Form. Unlike native mobile SDKs that require URL scheme registration in Info.plist or AndroidManifest.xml, the WinForms SDK handles the callback entirely within the WebView2 navigation events — no custom URL Types or protocol handlers are needed.

Agent instruction: Before providing SDK setup instructions, fetch the latest release version by running:

gh api repos/auth0/auth0-oidc-client-net/releases --jq '[.[] | select(.tag_name | startswith("winforms-")) | .tag_name | ltrimstr("winforms-")] | .[0]'

Use the returned version in all dependency lines instead of any hardcoded version below.

Prerequisites