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Identify the reasons behind ActiveX malfunctions in Office 2024/Microsoft 365 and provide a systematic approach to diagnosing issues.

July 29, 2026Open Access

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Why ActiveX Stops Working in Office 2024/Microsoft 365 and How to Diagnose It (archived 2026-07-27)

GKGo KomuraFujikura (United States)

Key Points

Identify the reasons behind ActiveX malfunctions in Office 2024/Microsoft 365 and provide a systematic approach to diagnosing issues.
Reviewed common causes of ActiveX failures in Office 2024/Microsoft 365.
Outlined troubleshooting steps including checking COM registration and dependent DLLs.
Considered factors like 32-bit/64-bit compatibility and IE mode.
Identified default disablement as a primary issue preventing ActiveX functionality.
Discovered mismatches in 32-bit and 64-bit versions as frequent culprits.
Emphasized the importance of Click-to-Run logs in diagnosing problems.

Abstract

When ActiveX stops working in Office 2024/Microsoft 365, work through the causes in order: default disablement, 32-bit/64-bit mismatch, COM registration, dependent DLLs, IE mode, and Click-to-Run logs. Archived version of https://comcomponent.com/en/blog/2026/04/25/002-office-2024-microsoft-365-activex-troubleshooting/, as published on 2026-07-27. The live article is maintained and may change after this date. First published 2026-04-25.

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Why ActiveX Stops Working in Office 2024/Microsoft 365 and How to Diagnose It (archived 2026-07-27)

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Abstract

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