Difference InLoox for Outlook Classic Add-in and Modern Add-in


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Question:

What is the difference between the InLoox for Outlook Classic Add-in and the Modern Add-in?

 

Answer:

The integration of InLoox in Outlook is a major advantage of InLoox. For many years, the classic COM add-in has been a key element for many of our existing customers.

Maintenance mode for Classic Add-in

However, Microsoft will not continue to develop the COM add-in technology in the future. You can read more information about this in the Microsoft article: Migrate from COM to web add-ins | Microsoft Learn.

We therefore recommend not using the classic COM add-in as it is already in maintenance mode. This means that no more new features will be added. The classic “InLoox for Outlook COM add-in” and the “InLoox for Windows Client” are expected to be discontinued in May 2025. You can also find more information on this under End of Life: Windows Clients »

The Modern Add-in: A future-proof solution

As a successor, we have developed a Modern Add-in for the integration in Outlook that is based on the latest technology. Find out more about the new InLoox for Outlook Modern Add-in here and take a look at the functionalities in detail in the corresponding help article.

We recommend switching to the new Modern Add-in to benefit from the advantages of the new add-in and to ensure that your work processes are future-proof. The Modern Add-in works in both the old and the new Outlook and is also suitable for Apple users. It is also available in the Outlook Web App (for MS365 customers with Exchange Online).

Installation and usage:

  • Cloud versions: If you are using InLoox in one of the cloud versions (InLoox Professional or InLoox Enterprise), you can download and install the Modern Add-in directly from the Microsoft App Source.
  • On-Premise: Users of InLoox On-Prem please follow the installation instructions: Download InLoox for Outlook Modern Add-in.

Note Using InLoox in combination with Microsoft 365 offers many other advantages. More about InLoox + Microsoft 365 »