C# : how to - single instance application that accepts new parameters?

Question

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

Answer 1

Look at the InitialInstanceActivator at the Genghis project

Answer 2

Why not have one program that adds the file to a queue, and then kicks off the downloading program if it is not already running. That downloading program watches the queue, which is just a file that you append download file names to.

Answer 3

Use an IPC (inter process communication) mechanism such as .net remoting

Answer 4

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.