search for: completionroutine

Hello, I've tried to search the mailing list archives (is their a searchable archive someplace?) for some reference to this problem. but found none. Forgive me if I didn't search hard enough. The Problem: we register a callback (lpCompletionRoutine) in our WSARecv call. This callback works fine for normal incoming messages. However, on socketclose, it does NOT get called. This behavior doesn't match what we see on Windows. Is there some configuration option we are missing? We see this same behavior for .exe's built on Windows and...