This XSL tries to force the response from a WMS server and get a complete XML instead of a styled HTML page.
The URL is like
http://www.cartografiarl.regione.liguria.it/CartoWebNet/CwGetFeatureInfo.aspx?FILE=E:\\Progetti\\MapServer\\tmp\\2053ebdc-2f9f-4adc-99d8-7feae362e11e.gml&XslUrl=http://steko.ominiverdi.org/elettro.xsl
(and lots of other useless bloat parameters that I removed for my own sanity). The XSL can be changed as a parameter, and the server will accept any valid URL (so silly, you say).