hi :) http://groups.google.com/groups?q=author:dmost%40magna.com.au&hl=ko&lr=&ie=UTF-8&selm=8pguo8%24bbl%241%40nnrp1.deja.com&rnum=3 GetQueuedCompletionStatus is return new OVERLAPPED yet. i am tested python2.3 with win32all-163.exe and python2.4a1 with pywin32-202.win32-py2.4.exe.