It is possible to run the WordSmith routines from your own programs; for this an API is published at http://www.lexically.net/wordsmith/version5/API/API.htm. If you know a programming language, you can call a .dll which comes with WordSmith and ask it to create a concordance, a word-list or a key words list, which you can then process to suit your own purposes.
See also : custom processing
Page url: http://www.lexically.net/downloads/version5/HTML/?api.htm