Merge pull request #336 from Andreas-Hjortland/master

Add note about running WebViewCompatible as admin

Author: michael-hawker

docs/controls/wpf-winforms/WebViewCompatible.md

@@ -19,6 +19,9 @@ Unlike [WebView](WebView.md), **WebViewCompatible** uses one of two rendering en
 * On Windows 10 devices, the newer Microsoft Edge rendering engine is used to embed a view that renders richly formatted HTML content from a remote web server, dynamically generated code, or content files.
 * On devices running older versions of Windows, the [System.Windows.Controls.WebBrowser](https://docs.microsoft.com/dotnet/api/system.windows.controls.webbrowser?view=netframework-4.7.2) is used, which provides Internet Explorer engine-based rendering.
 
+> [!NOTE]
+> The Edge runtime does not at the moment work when the process is elevated as an administrator. Therefore **WebViewCompatible** will fall back to use the [System.Windows.Controls.WebBrowser](https://docs.microsoft.com/dotnet/api/system.windows.controls.webbrowser?view=netframework-4.7.2) when it detects that the process is running as administrator.
+
 > [!NOTE]
 > If you have feedback about this control, create a new issue in the [Microsoft.Toolkit.Win32 repo](https://github.com/windows-toolkit/Microsoft.Toolkit.Win32/issues) and leave your comments there. If you prefer to submit your feedback privately, you can send it to XamlIslandsFeedback@microsoft.com. Your insights and scenarios are critically important to us.