Hello, I'm trying to compile start_child example of Boost.Process with this configuration: Windows 64 bits MinGW g++ 4.6.2 boost_1-51 Boost.Process 0.5 And I have this error: error: no matching function for call to 'boost::system::system_error::system_error(DWORD, const boost::system::error_category& (&)(), const char [54])' note: candidates are: boost::system::system_error::system_error(int, const boost::system::error_category&, const char*) ... This difficulty was mentioned on the list "[Boost-users] [Process] Can't build example" at date 12/4/10. Am i missing something ? Thank you in advance Best regard Ronan Trépos -- Trépos Ronan INRA unité BIA, équipe MAD, Toulouse http://carlit.toulouse.inra.fr/wikiz/index.php/Ronan_TREPOS tel : 05 61 28 51 89