In Boostbook in the getting started documentation, the download for xsltproc for Windows without Cygwin lists the link http://www.meta-comm.com/engineering/boost/xsltproc-win32.zip . While this does get one a zip file including xsltproc.exe and DLLs needed by it, the implementation which it has is buggy. The implementation includes the files xsltproc.exe, iconv.dll, libexslt.dll, libxml2.dll, libxslt.dll, and zlib1.dll. The latest versions of these in the appropriate distributions for Windows fix the bugs in the distribution above. The distribution above should be replaced by the appropriate files from the latest versions for iconv, libxml2, libxslt, and zlib. The latest versions of these individual distributions can be retrieved from http://www.zlatkovic.com/pub/libxml/ . Keeping the buggy version at the metacomm site simply means that other programmers hoping to use xsltproc to build Boost documentation in Boostbook and Quickbook format will just fail intermittently with the buggy version. To whomever is in charge of updating the xsltproc-win32.zip in the link above, I will be glad to send via e-mail the xsltproc-win32.zip which works correctly to replace the buggy version or, if given an ftp address with write access, I will be glad to upload the correct version, which contains the latest files.