Hi, In boost/uuid/windows_generator.hpp a conversion routine is used that does return a UUID but it is not the same as the one that was generated through the call to UuidCreate(). I have attached a test case that is showing the difference of the choosen implementationen and the expected one. The expected one was validated using the VS debugger, too. I would like that the provided convertion routines from the windows specific GUID/UUID structure to boost::uid and vice versa will be included in boost::uuid, too. I'm using the v13 version from the vault. Should I open a bug report for this issue? Bye Christian -- Christian Leutloff, Aachen, Germany ______________________________________________________ GRATIS für alle WEB.DE-Nutzer: Die maxdome Movie-FLAT! Jetzt freischalten unter http://movieflat.web.de