For years we have heard that the AltovaXML XSLT/XQuery 2.0 processor
had no extensions of any kind. This is no longer entirely true.

AltovaXML 2008 Online Manual,
http://www.altova.com/manual2008/AltovaXML/, and AltovaXML 2008
Developer Reference Manual (PDF),
http://www.altova.com/documents/AltovaXML.pdf, make it clear that we
can make user-defined extensions in Java and .NET and the msxsl:script
extension element is supported.

Still we don't have any extensions in a vendor-defined Altova namespace.

Cheers,
Jesper Tverskov
http://www.xmlplease.com