The program looks to me like some kind of text editor. The tray is for *background processes* that need little interaction with, not programs like editors that people are supposed to place their full attention on. (Sorry if my guess is off, but that’s what it looks like.)

You’re welcome for the tip, I just thought it’d be a good thing to share.

It’s also worth noting that most programs that use the tray (IM, system tools, anti-malware, download managers, ect) are single instance, and thus clicking the button again will bring up the original process. And, of course, the button state is obviously different (between running and not-running/min to tray.)

Now, to be sure, I understand where you’re coming from (users might not notice the button state, ect.), but it seems to be much less of a deal than you make it out to be. And while tray-minimizing programs are common, multi-instance ones are not, and/or tend to be for advanced users only, who probably could figure it out anyway.

In any event, the middle click tip is a great one, thanks. I still think I’ll stick to using the ressurected QuickLaunch, as it wastes less horizontal space than pinning applications.

To start a new instance, you can also middle-click the taskbar button.