Hello, I've been in fight with memory leaks in my application for some days. And now I found that most memory is losing while using adjacency_list<> (boost 1.33.1 + VC++6.0). Basically we've lost about 100Kb after each graph life cycle (created - changed - removing). Moreover, I guess, I found the similar problem on the very simple test: #include "..\boost_1_33_1\boost\graph\adjacency_list.hpp" using namespace boost; typedef adjacency_list<> Graph; void main() { int num_vertex = 10000; Graph* graph = new Graph(); for(int j=0; j