Closing Netdude
Netdude is one of the few applications that (imho) provides an exit dialog that is actually useful.
Netdude's exit dialog.
If you have modified any of the currently open traces, Netdude will present the exit dialog shown above. Each unsaved and modified trace is listed with a Save button that provides a way to save that trace. Tracefile names you have saved using the dialog are grayed out. You don't need to save any traces of course -- when you're sure you've saved everything you need, click the Exit button and Netdude exits.