The Win32 Thread Pool API — Concurrency Without Creating Threads, via CreateThreadpoolWork (archived 2026-08-25)

Are you spawning CreateThread calls all over your native code? This article explains the Win32 thread pool API redesigned in Vista — the four objects work, timer, wait, and io, cleanup groups, and what you must not do inside a callback — based on primary sources. Archived version of https://comcomponent.com/en/blog/win32-thread-pool-api/, as published on 2026-08-25. The live article is maintained and may change after this date. First published 2026-08-22.