A Practical Guide to FileSystemWatcher - Handling Missed and Duplicate Events (archived 2026-07-27)

We organize how to use FileSystemWatcher and its pitfalls - missed events, duplicate notifications, completion-detection traps, rescans, atomic claims, and idempotency. Archived version of https://comcomponent.com/en/blog/2026/03/10/000-filesystemwatcher-safe-basics/, as published on 2026-07-27. The live article is maintained and may change after this date. First published 2026-03-10.