Hi, as seen on php bugs 21539 and 21666, the sablot.dll extension shipped with 4.3.0 didn't get the < xsl:sort > at all.
I got it to work when I installed Expat-1.95.5, and some "I-don't-know-where-it-comes-from" sablot.dll that weighs 224ko and is dated 19 nov 2002. All other dlls come from latest distro of full sablot package (sablot-0.97, lib-iconv1.8). The sablot.dll from that distro never worked ... Could anyone tell us more about that strange sablot.dll story , and why features apparently went backward with new version of sablotron ?