Is it possible? What would be the classes to use to implement it? I'm just fascinated with steganography. :)

Normal classes, you just need a LOT of imagination on how you and the intended would hide the message without making it detectable by the rest of us. If you can do it by hand, work out what you'd do and put that logic into a program

As long you know the logic/algorithm , you can code it in C# .

Thanks for the reply guys! :)

@vckicks - corinna john rocks!