 <p>I had the same trouble, went to see whether the suggested fix from <a href="https://svn.boost.org/trac/boost/ticket/4209" rel="nofollow">Boost Ticket #4209</a> worked, which didn't. I could see the total number of the elements, but not the content.</p> <p>So, the choices are, to switch to VS2012, for which there is a <a href="https://cppvisualizers.codeplex.com/" rel="nofollow">Plug-In</a>, or invest in figuring out the format in VS2010 and fixing the existing suggested code. </p> <p>Or, and that's what I did, use std::tr1::unordered_set / map instead. There is a visualizer for it in Visual Studio. And, later on, after debugging, if you wish, switch back to boost.</p>