Hello, concerning Boost.PropertyTree: First: Taking the example file from the Tutorial: <debug> <filename>debug.log</filename> <modules> <module>Finance</module> <module>Admin</module> <module>HR</module> </modules> <level>2</level> </debug> The module entries are parsed using BOOST_FOREACH(ptree::value_type &v, pt.get_child("debug.modules")) m_modules.insert(v.second.data()); But reading the documentation for "get_child" confuses me: --------------- self_type & get_child(const path_type & path); Get the child at the given path, or throw ptree_bad_path. Notes: Depending on the path, the result at each level may not be completely determinate, i.e. if the same key appears multiple times, which child is chosen is not specified. [...] --------------- So how is it garantueed that BOOST_FOREACH will iterate over all the children? Second: (This is my actual problem) If for example i extend the file a bit like this: <debug> <filename>debug.log</filename> <modules> <module>Finance</module> <param1>100</param1> <param2>200</param2> <module>Admin</module> <param1>100</param1> <param2>200</param2> <module>HR</module> <param1>100</param1> <param2>200</param2> </modules> <level>2</level> </debug> Now the "modules" have sub-items. How would i go to iterate over the modules and children if i'd need to create an object for each module and associate the right params to each? Thanks, regards, Lars