Hi, I would like to use the string algorithm library in my project. Including #include <boost/algorithm/string.hpp> in the source file gives the following error on Windows XP, VC++ 6 SP5. Can anyone help me? Thanks a lot in advance. Pshemek c:\vendor_libs\include\boost/algorithm/string/yes_no_type.hpp(22) : error C2265: '<Unknown>' : reference to a zero-sized array is illegal c:\vendor_libs\include\boost/algorithm/string/yes_no_type.hpp(23) : see reference to class template instantiation 'boost::algorithm::size_descriptor<I>' being compiled c:\vendor_libs\include\boost/mpl/bool.hpp(37) : fatal error C1506: unrecoverable block scoping error Error executing cl.exe. Kind regards Przemyslaw Sliwa (0044) 20788-65014 GFX Development -------------------------------------------------------- If you are not an intended recipient of this e-mail, please notify the sender, delete it and do not read, act upon, print, disclose, copy, retain or redistribute it. Click here for important additional terms relating to this e-mail. http://www.ml.com/email_terms/ --------------------------------------------------------