This program seems like it could be very very useful. I don' t know if anyone has seen or read about this (it is a bit old) but it still seems very interesting. The fact that it was able to include the US constitution and a copy of the Delaration of Independence in Microsoft Word was pretty cool. A question though, wouldn't this f*%k up an MD5 checksum on a fle even if it didn't alter the size of it?

http://crazyboy.com/hydan/
http://www.businessweek.com/technolo...1890_tc030.htm