Xerces-J 2.0: http://xml.apache.org/xerces2-j
Xerces-J 1.4.4: http://xml.apache.org/xerces-j
Xerces-C++ 1.7.0: http://xml.apache.org/xerces-c
Oracle XML Parser for Java: http://technet.oracle.com/tech/xml/xdk_java/
Oracle XML Parser for C: http://technet.oracle.com/tech/xml/xdk_c/
Oracle XML Parser for C++: http://technet.oracle.com/tech/xml/xdk_cpp/