DLL that was not present in memory despite not being formally unloaded

🖥️ Mysterious DLL Persistence



Microsoft recently explored a puzzling issue where a DLL remained in memory even after seemingly being unloaded, sparking interest in how Windows manages dynamic link libraries. This phenomenon highlights the complexity of Windows' memory management, especially concerning DLLs and their loading/unloading processes. Understanding this can help in optimizing system performance and troubleshooting memory-related issues.

guid

https://news.ycombinator.com/item?id=48705910

source_url

https://devblogs.microsoft.com/oldnewthing/20260625-00/?p=112467

author_name

ibobev

id: 4281
uid: cdPsS
insdate: 2026-06-28 14:05:34
title: DLL that was not present in memory despite not being formally unloaded
additional:

🖥️ Mysterious DLL Persistence



Microsoft recently explored a puzzling issue where a DLL remained in memory even after seemingly being unloaded, sparking interest in how Windows manages dynamic link libraries. This phenomenon highlights the complexity of Windows' memory management, especially concerning DLLs and their loading/unloading processes. Understanding this can help in optimizing system performance and troubleshooting memory-related issues.
category: Hacker News
md5:
guid: https://news.ycombinator.com/item?id=48705910
source_url: https://devblogs.microsoft.com/oldnewthing/20260625-00/?p=112467
updated:
image:
author_name: ibobev
author_link:
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