windows
http://cnx.rice.edu/content/m11601/latest/approximation.exe
http://cnx.rice.edu/content/m11601/latest/lvanlys.dll
linux
http://cnx.rice.edu/content/m11601/latest/approximation_linux
http://cnx.rice.edu/content/m11601/latest/lvanlys.so
solaris
http://cnx.rice.edu/content/m11601/latest/approximation_solaris
http://cnx.rice.edu/content/m11601/latest/lvanlys.so
http://cnx.rice.edu/content/m11601/latest/Approximation.llb