A computer program is a sequence of commands, which tells the computer how to perform a task or a sequence of tasks. Large computer programs are called software, they perform heavier tasks. Some of those software programs are being published on the net, and this is how they are downloaded for free everyday. Microsoft is well known for this way of selling products like Internet explorer, Net Meeting, Real Audio etc. The Internet is probably one of the most important informational center in the world. Indeed, with a simple server c ....