These type of programs are the most useless ever made. Do they work ? That is asking if a totaly blind and deaf person can find his way around New York when never having been there. It is posible right ? but how likely ? 1:1000,000,000,000 ? I have writen this before, don't believe me ? Try it. Have a dive into something you might not know.  It is only posible to get passwords 1. If you know ALL about it but forgot wheter it is "whMM1278" or "WHmm1278" or the word exists in the programs DICTIONARY. Any other password say "Qw12!##Cb%fg178" Would take a super computer 100 years to find. Yours ? It will be totaly worn out long before you found it. Unless you  live to be 200 years and your computer last the same length.