How to convert a VSTO add in to outlook web add in for the new outlook view in Microsoft 365 outlook

Ramakrishnan Ramar 30 Reputation points
2025-01-24T03:15:23.58+00:00

We have developed an add-in using a C# VSTO add-in project in Visual Studio 2022. However, we now need to implement the same functionality for the web version, New Outlook, and mobile compatibility. Unfortunately, there doesn't seem to be proper documentation available for this transition.

Could you please share your thoughts on how we can convert the VSTO add-in to meet these requirements?

Microsoft 365 and Office | Development | Other
Outlook | Windows | Classic Outlook for Windows | For business
Microsoft 365 and Office | Install, redeem, activate | For business | Windows
Developer technologies | C#
Developer technologies | C#
An object-oriented and type-safe programming language that has its roots in the C family of languages and includes support for component-oriented programming.
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