While attempting to learn how DXSpider filters work, I found that I had to glean bits and pieces of information from the DXSpider User Manual and Administrators Guide as well as various posted messages, help files and the program and data-base files themselves. Therefore, this is by no means an original work. I have used and in some cases copied from some of these sources. What I have tried to accomplish is to gather this scattered information, put it in one spot (please pardon the pun) so others might benefit. I would advise those with interest to go back and read these other sources at their leisure.