Hi,    I am trying to learn how to read an XML file using boost-serialization.    The code snippet of a sample program is as follows :    void restore_schedule(bus_schedule &s, const char * filename)    {        // open the archive        std::ifstream ifs(filename);        assert(ifs.good());        boost::archive::xml_iarchive ia(ifs);        // restore the schedule from the archive        ia >> BOOST_SERIALIZATION_NVP(s);    }    First few lines of demo.xml are as follows :    <?xml version="1.0" encoding="UTF-8" standalone="yes" ?>    <?xml-stylesheet type="text/xsl" href="XSLTFile.xsl"?>    <!DOCTYPE boost_serialization>    <boost_serialization signature="serialization::archive" version="6">    But this gives me below error :    $ ./a.out    terminate called after throwing an instance of 'boost::archive::xml_archive_exception'      what():  unrecognized XML syntax    If I remove the line :    <?xml-stylesheet type="text/xsl" href="XSLTFile.xsl"?>    from demo.xml then it works fine.    Can you please let me know if there is any workaround for this problem?    Currently I am using Fedora Core 13 with boost-serialization-1.41.0-7.fc13.i686.    Is this case handled in latest boost release? Regards, Girish