I had built the boost libraries a while ago, using bjam. It looks like all the boost debug libraries were built with Debug Information Format of "C7 Compatible (/Z7)" instead of "Program Database for Edit and Continue (/ZI)" and I'd like to rebuild the libraries with this option turned on. In addition, we're going to need "Treat wchar_t as a built-in type" turned off. It defaults to on. Any help that can be given in setting the bjam to build correctly for our situation would be much appreciated. Thanks in advance, Lawrence