\section{intro}\label{main_intro} MO is an extension of the ANSI-C++ compliant evolutionary computation library {\bf EO}. \par It contains classes for almost any kind of one solution based heuristics.\section{tutorial}\label{main_tutorial} \section{install}\label{main_install} The installation procedure of the package is detailed in the {\tt README} file in the top-directory of the source-tree.\section{design}\label{main_design}