Interesting: Try And Save A Windows File With The Name "Con"

       Did you try it? If not, that's okay because I did for you. 

   You can't do it! A friend told me about this and my first thought was that the word must serve a special roll that prohibits it to be used as a file name. There are several others words or strings (programming term for group of characters) that are unavailable to Windows users in terms of file naming: com, com1, con, lpt1, con., .con, prn, aux, nul. To name a few... The reason why we can't name files certain words, phrases (or strings) is because they are device names in MS-DOS (Microsoft Disk Operating System) and Windows. For more information there is a great article in wikipedia:

http://en.wikipedia.org/wiki/Device_file