PAIMPONT, France -- A faint trail of mud and manure leads from the door of Yves Denais's barn-floor office, overlooking the pens for his Holstein calves, to a cluttered desk atop which sits a compact beige plastic box that once placed Mr. Denais at the cutting edge of information technology. The Minitel, the once-revolutionary online service that prefigured the Internet in the early 1980s, allowed the French to search a national phone registry, buy clothing and train tickets, make restaurant reservations, read newspapers or exchange electronic messages more than a decade before similar services existed almost anywhere else in the world. The network is now largely relegated to the realm of nostalgia, though, with its dial-up connection, black-and-white screen and text that scrolls out one pixelated character at a time. [ABSTRACT FROM AUTHOR]