When I first started to use Xfce as my main desktop environment because my pc couldn’t handle GNOME3 properly, I found out that XChat didn’t minimized as a tray icon like it did on F14 with GNOME 2.3.x so I had to make that happen because I don’t want XChat to stay as a window button.
To do that open XChat then go to: Settings -> Preferences -> Chatting -> Alerts -> Check Enable system tray icon -> click OK and XChat now on will be on the notification area whenever you run it:
P.S. It didn’t take me 9 minutes to fix it if you base on the clock! 😀