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VA Technical Reference Model v 24.4

Add-in Express for Office and .NET
Add-in Express for Office and .NET Technology

General InformationGeneral Information help

Technologies must be operated and maintained in accordance with Federal and Department security and privacy policies and guidelines. More information on the proper use of the TRM can be found on the TRM Proper Use Tab/Section.

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Description: Add-in Express for Office and .NET is a framework for developing commercial class Microsoft Office extensions in Microsoft Visual Studio. Possible extensions include Component Object Model (COM) add-ins, Outlook plugins, Excel XLL, Universal Disk Format (UDF), Real-Time Data (RTD) Servers and smart tags. Written in C# and based on the .NET framework, this technology works with all editions of Visual Studio, including Express, and all versions of Microsoft Office from 2000 to Office 2019. Each Add-in Express solution is an ActiveX library that contains one or several automation objects which implement the interfaces required by a supported technology. Every project based on Add-in Express includes two projects: the add-in project itself and its setup project that can be used to deploy an add-in.

This technology is available in three editions, Add-in Express for Office and .NET Standard, Add-in Express for Office and .NET Professional, and Add-in Express for Office and .NET Premium. This entry covers all three editions.
Technology/Standard Usage Requirements: Users must ensure their use of this technology/standard is consistent with VA policies and standards, including, but not limited to, VA Handbooks 6102 and 6500; VA Directives 6004, 6513, and 6517; and National Institute of Standards and Technology (NIST) standards, including Federal Information Processing Standards (FIPS). Users must ensure sensitive data is properly protected in compliance with all VA regulations. Prior to use of this technology, users should check with their supervisor, Information Security Officer (ISO), Facility Chief Information Officer (CIO), or local Office of Information and Technology (OI&T) representative to ensure that all actions are consistent with current VA policies and procedures prior to implementation.
Section 508 Information: This technology has not been assessed by the Section 508 Office. The Implementer of this technology has the responsibility to ensure the version deployed is 508-compliant. Section 508 compliance may be reviewed by the Section 508 Office and appropriate remedial action required if necessary. For additional information or assistance regarding Section 508, please contact the Section 508 Office at
Decision: View Decisions

Decision Source: TRM Mgmt Group
Decision Process: One-VA TRM v22.9
Decision Date: 09/14/2022 at 19:24:06 UTC
Introduced By: TRM Request
Vendor Name: Add-in Express
- The information contained on this page is accurate as of the Decision Date (09/14/2022 at 19:24:06 UTC).