You only need to distribute one file:
            xerces-c_3_3.dll for Windows
            libxerces-c-3.3.a for AIX
            libxerces-c-3.3so. for Solaris/Linux
            libxerces-c-3.3.sl for HP-UX on PA-RISC
            libxerces-c-3.3.so for HP-UX on IA64
            libxerces-c-3.3.dylib for Mac OS X
            
            Note, however, that if you built Xerces-C++ with dependencies
               on other libraries (e.g., ICU for transcoder support or libcurl
               for net accessor support) then you will need to ship those
               libraries as well.
            You can also link your application to a static version
               of the Xerces-C++ library in which case you won't need
               to distribute any extra libraries.