Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Posting-Version: version B 2.10.2 9/18/84; site brl-tgr.ARPA
Path: utzoo!watmath!clyde!burl!ulysses!allegra!bellcore!decvax!genrad!panda!talcott!harvard!seismo!brl-tgr!tgr!gwyn@Brl-Vld.ARPA
From: Doug Gwyn (VLD/VMB) 
Newsgroups: net.unix
Subject: Re:  HELP system for UNIX SysV R2
Message-ID: <8187@brl-tgr.ARPA>
Date: Sun, 10-Feb-85 16:06:50 EST
Article-I.D.: brl-tgr.8187
Posted: Sun Feb 10 16:06:50 1985
Date-Received: Wed, 13-Feb-85 02:19:44 EST
Sender: news@brl-tgr.ARPA
Organization: Ballistic Research Lab
Lines: 5

How about the DEC HELP facility as implemented e.g. on VMS?
I have seen such a facility implemented as a TECO macro!
The important thing seems to be to get the user interface
(including "functionality", how I hate that word) right.
Variable-resolution help seems to be a good idea if done well.