Regarding this problem, I've found more details about it on the Visual Studio Connect website: http://connect.microsoft.com/VisualStudio/feedback/details/106937/memory-lea... typeinfo is used by the unit test framework if you use BOOST_AUTO_TEST_CASE_TEMPLATE. Few fixes that seem reasonable: All use the following tools: _CrtMemCheckpoint [1] and _CrtMemDumpAllObjectsSince [2] available since VS2003 to report objects in specific regions Few reasonable cases: * For the entire test path, if dumping enabled, checkpoint before all tests start, dump after all tests complete * For each test suite, checkpoint before suite starts, dump after suite ends (complicated by nested suites...) * For each test case, checkpoint before test starts, dump after test ends 1: http://msdn.microsoft.com/en-us/library/h3z85t43(v=vs.90).aspx 2: http://msdn.microsoft.com/en-us/library/hhy09244(v=vs.90).aspx -- Thomas Harning Jr.