Hello, I was considering using Boost included xml serialization code for quite mission critical code where the xml files couldn't be trusted. But after some testing I realized the following problem in the collections_load_imp.hpp: template<class Archive, class Container, class InputFunction, class R> inline void rebuild_collection(Archive & ar, Container &s) { s.clear(); // retrieve number of elements unsigned int count; ar >> BOOST_SERIALIZATION_NVP(count); R rx; rx(s, count); InputFunction ifunc; while(count-- > 0){ ifunc(ar, s); } } If you consider the code, the count is taken for granted to be correct. In my case I can't know this. Perhaps there should be an preprocessor option to remove the pre-allocation here? That is remove rx(s,count) from the function above (the serialization should work quite nicely anyway, because the Container.push_back dynamically allocates memory. If anyone know of similar problems with other parts of the boost serialization library, please tell me about. Best Regards, Jens Berlips