The patent litigation wave has again hit one of its strongest promoters. Vertical Computer Systems sued Microsoft for unlicensed use of its patent on a «Method for generating web sites» (US patent 6,826,744).
The patent covers the generation of dynamic websites using components which are abstracted by XML. So basically every web site which is created from XML could possibly infringe on the patent. DocBook created web sites come to mind.
The full article can be found at http://www.infoworld.com/[...]/HNmsdotnetpatentsuit_1.html.