...one of its features is broken on Win7 x64. You do not want to try using the Application Minimizer. Don't even click the tab for it in the UI. (that's the feature that lets you minimize any app or window to the tray)
Well, I got too excited about finding this app. It really is exactly what I'm looking for, but it's more broken than you refer to above. At first, I had problems because there were a few icons I could not hide (they would appear in the hidden list as well as still in the tray). But now, whenever I run it, it just makes my entire taskbar disappear! I sent the company an email a week or two ago, but no reply as of yet. Wonder if they're still working on this project and I wonder if there's anything comparable that works?