MasterMind 2001: wow that's old :)
While browsing through some really old files on my hard disc i found a little game i wrote back in 2001. It is a very simple Mastermind written in VB6. Just in case it could be of any use for somebody I made it available: http://dev.budts.be/releases/old/. I included the sourcecodes and licensed it under the GPL.
Please note that this is very old code and the program has a very bad design. Today my programs have a much nicer architecture ;). Also note that i'm not responsible for any damage ;)