I\'m creating a (C#) program that downloads binaries using NZB files, there may only be one instance of my application running at any time.
So when a user doubleclic
Try this: Your main program creates a named pipe or other interprocess communication facility and listens on it. You create a separate small program that, when run with an NZB file as a parameter, opens the pipe, feeds the file info into it, and exits. Your main program then processes the new file and downloads it.