Hi, > Please take a look at I hope I could find a way to write code using ACE that runs similar on UNIX and Win32. If I look into Process\imore.cpp I find "#if ! defined (ACE_WIN32)" which is not that I want to use in my code. > Try writing 3 bytes on pipe[1]... This in not the point (writing '\n'). The problem is that I cannot close handle.