This is a dry-run of paper to be presented at WCES'98
The World Congress on Expert Systems, Mexico City, on March 16-20th 1998.
For as long as there has been interest in knowledge-based systems there has been interest in sharing formally expressed knowledge. It is traditional for this to require a high degree of social interaction between the suppliers and recipients of such information but the Internet has brought with it an interest in more opportunistic, semi-automatic cooperation between systems. This raises a variety of technical problems relevant to knowledge-based systems design and implementation. We discuss these, concentrating on the use of protocols and interlinguas. An electronic version of the paper (rt-mac-9703.ps.gz) is available at http://www.ime.usp.br/dcc/techrepts.html or by ftp (ftp.ime.usp.br).