It has almost been 10 months since I published the IOCP server library. This little library has been very useful to me over several C++ projects. It offers impressive scalability on multi-core processors and a simple interface for TCP graceful shutdown (unlike boost ASIO).
I recently found a crash bug where an utility function was copying a non-NULL terminated IP address string. This bug is specific to Unicode build, and has no affect on ANSI build.
Also, I ran CPPCheck against the library. I am proud to say that CPPCheck has reported only one style warning, and this has also been addressed.
Anyway, you may get the latest version of IOCP Server here. Enjoy!