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WININET_E_ASYNC_THREAD_FAILED
WININET_E_ASYNC_THREAD_FAILED is a WinINet HRESULT. It means that WinINet encountered a failure in its asynchronous processing thread. Existing asynchronous operations may not complete normally, so the application should treat the associated session as unreliable.
What to check
- Capture the request context, extended error information and application logs around the asynchronous failure.
- Release affected handles in their documented order and create a fresh session only after cleanup is complete.
- Review callback lifetime, concurrency, process resource pressure and third-party code that runs in or around callbacks.
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