I am ready to commit changes to throw_exception.hpp to automatically inject support for boost::current_exception and for transporting of arbitrary data in exception objects, for all exceptions emitted by Boost. The relevant Boost Exception tests pass with all compilers currently included in http://www.boost.org/development/tests/trunk/developer/exception.html, with the exception of this one: http://tinyurl.com/49eh7d, which I'm not sure how to troubleshoot (also, notably, Borland tests are missing for some reason.) While the change is trivial, throw_exception() is a critical Boost component and this might cause temporary regressions throughout all Boost libraries, so I will wait a few more days to discuss any objections. Attached is a SVN .patch file. Emil Dotchevski Reverge Studios, Inc. http://www.revergestudios.com/reblog/index.php?n=ReCode