On Thu, 16 Nov 1995, Scott Brickner wrote:

You'd need a program which not only *accepted* the additional parameter, but also *needed* the second parameter. I confess I have some difficulty thinking of one.

How about command-line compression options. Gzip, for example, allows you to specify how good you want the compression to be, with better compression taking longer. So you could justify passing a set of options to the compression algorithm, which could also be used to pass key information to the encryption algorithm. In fact, you could pass in a void * pointer to options that had been set up in a preferences panel in the application, which would be provided by the plug-in compression or encryption code. That structure could then have anything you wanted in it. Also, I'm not sure you'd need to pass a key, surely the encryption code could do all the key-handling itself ? Mark