<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"><html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta content="text/html; charset=UTF-8" http-equiv="Content-Type"/> </head> <body> Hi Michael, Hi Peter,   Thanks for your answers.   I tried to put the implementation name in the <data> node as specified by Peter, but it doesn't work, my package is not loaded when I put "com.sun.star.comp.JAXTHelper" at that place which must contains in fact the name of my filter (if I understand well). When reading code of XSLTFilter.cxx, I saw that the name of the specific implementation is retrieved in msUserData[1] and that stylesheet is retrieved in msUserData[5], it's why I assume that each msUserData corresponds to the sequence of value in the data node, values separated by semi-colon because stylesheet is the sixth entry in this string (ok to msUserData[5] found in code).   And also beacuse the second entry is empty and a comment in code tell that we use this not used user data for specific implementation.     Michael, If I understand you, you tell that XSLT 2 support must be redone. But I think that this support is still here, we only have to find where to set the java implementation to override the default libxslt. Do you confirm Pete ?     Thanks Pete, to have a look on this. </body> </html>