Just noticed a minor typo in the spec: For example, the message #$#say 12345 what: "Hi there!" from: Biff to: Betty contains 3 keyword-value pairs, all with simple values. The message name is say, and the authentication key is 12345. The keywords are what, from, and to; the values associated with these keywords are Hi There!, Biff and Betty respectively. ^ This | letter should be lowercase. --Doug