Microsoft Outlook - Outlook Add-ins

Outlook Add-ins

(Other possible and frequently used names: Microsoft Outlook add-ons, Microsoft Outlook plug-ins, Microsoft Outlook extensions, etc.)

Outlook Add-ins are small helping programs for the Microsoft Outlook application. The main purpose of the add-ins is to add new functional capabilities into Microsoft Outlook and automate some routine operations. Add-in also refers to programs where the main function is to work on Outlook files such as synchronisation or backup utilities.

From Outlook 97 on, Exchange Client Extensions are supported in Outlook. Outlook 2000 and later support specific COM components called Outlook AddIns. The exact supported features (such as .NET components) for later generations were extended with each release.