The Apache XML Delivery Toolkit is now at version 0.05. This release automates the caching mechanism so that any stylesheet mechanism you develop yourself doesn't have to. It does this by carefully overloading the Apache object, and re-blessing $r into that new object, and also re-tieing STDOUT to that new package. Apache::XPathScript stylesheets are turning in at about 80 hits/sec on my development box (heavily overloaded box running Apache::StatINC and a lot of other stuff). http://xml.sergeant.org/axdtk/ -- <Matt/> Fastnet Software Ltd. High Performance Web Specialists Providing mod_perl, XML, Sybase and Oracle solutions Email for training and consultancy availability. http://sergeant.org http://xml.sergeant.org