Getting Workplace Reservation Add-in Error "This browser is not supported in this experience or This add-in could not be started."

[Elizabeth Nolan]

We're trying to install the WSD Reservation Outlook Add-in in our lower level environment, and are getting an error: "This browser is not supported in this experience or This add-in could not be started."

We installed WebView2 runtime into our device, like (https://support.servicenow.com/kb?id=kb_article_view&sysparm_article=KB1000344) article states, but we are still getting the same error. We are wondering if there are other things, like group rules, that would block the add-in from working.

Any suggestions?

[shloke04]

Hi @Elizabeth Nolan 

Did you try the steps mentioned in the below article:

https://docs.microsoft.com/en-us/office/dev/add-ins/concepts/browsers-used-by-office-web-add-ins

And also the note mentioned in the HI article below:

On Windows versions prior to Windows 11, the WebView2 control must be installed so that Office can embed it. It's installed with Microsoft 365, version 2101 or later, and with one-time purchase Office 2021 or later; but it isn't automatically installed with Microsoft Edge. If you have an earlier version of Microsoft 365 or one-time purchase Office, use the instructions for installing the control at Microsoft Edge WebView2 / Embed web content ... with Microsoft Edge WebView2. On Microsoft 365 builds before 16.0.14326.xxxxx, you must also create the registry key HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\16.0\WEF\Win32WebView2 and set its value to dword:00000001.

Hope this helps. Please mark the answer as correct/helpful based on impact.

Regards,
Shloke

[Elizabeth Nolan]

Thanks for the proposed solution.  We already installed the WebView2 control and set the registry keys, so this wasn't able to fix our issue.

Any other suggestions?

[lynnrogers]

Hi Elizabeth,

I'm trying to do exactly the same thing and getting the same errors. I think the problem is that the add-in is trying to open Internet Explorer 11 as the default browser but it is not supported. This is a section from the document referenced in the link below:

If you are installing Workplace Reservations for Microsoft Outlook Add-in application in a Windows system, it is required to have the “WebView2 runtime” installed on the client devices. You can downloaded it from Microsoft. If you are using Windows, it is currently not possible to use Microsoft Outlook on the web using the Internet Explorer 11 browser. Instead, you can use Mozilla Firefox, Microsoft Edge, or Google Chrome.

https://docs.servicenow.com/bundle/quebec-employee-service-management/page/product/workplace-reserva...

The default browser used is determined by the Windows version and Office package version.

https://docs.microsoft.com/en-us/office/dev/add-ins/concepts/browsers-used-by-office-web-add-ins

Unfortunately the versions we are using point to IE11 and I don't know how to get around that other than upgrading Office 365 which is beyond my control.

Sorry I can't be of more help. Have you been able to find a solution?

Kind regards,

Lynn

[Elizabeth Nolan]

We're encountering the same issue.  We're on MS 2016, with some hardcoded hooks of IE 11.  So, even though we try to default to another browser, we can't.  We're working with Microsoft to see if there's some kind of patch available until we upgrade to Office 365.

Note - we were able to make the add-in appear in OWA (the client only showed the "This browser..." error).  But, no results show in OWA.  We're working with ServiceNow on this issue.

I'll let you know if Microsoft or ServiceNow come back with something on either of add-in issues.  Meanwhile, we have to move forward without the add-in.