In response to requests, I have written an application note explaining how to do this, and Jim, AD1C has kindly posted it on his wed site. The URL is <http://www.ad1c.us/dx4win/appnote2.htm>.
73, Pete N4ZR The World HF Contest Station Database was just updated on 10 May 2005 2960 contest stations at www.pvrc.org/WCSD/WCSDsearch.htm