Add-in Express for Microsoft Office and .net

Easily write professional extensions for Microsoft Office such as COM add-ins, smart tags, real-time data servers and user-defined functions.

Published by Add-in Express
Distributed by ComponentSource since 2006

Prices from: $ 387.10 Version: 10.4.4741 NEW Updated: Mar 11, 2026 3.50 Star Average Review3.50 Star Average Review3.50 Star Average Review3.50 Star Average Review3.50 Star Average Review (3)

Screenshot of Add-in Express for Microsoft Office and .net

Add-in Express for Microsoft Office and .net 10.3.4730

Released: Aug 25, 2025

Updates in 10.3.4730

Features

  • Added support for Microsoft Office 2024 applications.
  • Added new members to 'ADXExcelError' and 'ADXxlCVError' enumerations.
  • Added 'OnBeforeClickTwiceWebRequest' event to the 'ADXAddinModule' and 'ADXXLLModule' classes.

Fixes

  • Add-in Express Outlook panes in DockLeft, DockTop, DockRight, and DockBottom regions caused add-ins to crash on Arm64.
  • Exception "temp.exe.manifest could not be found" when signing ClickOnce installer using adxpublisher.exe from command line.
  • The ADXDesignClasses17 source code project wasn't supplied.
  • Add-in Express panes don't have rounded corners starting from Office build 2406.
  • Add-in Express Word panes don't show up starting from Office build 2406.
  • Incorrect behavior of Add-in Express Outlook panes in all ReadingPane layouts starting from Office build 2402.
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