Thanks New Model No.15 for telling me about this handy little program... now all those that wanted to put Outlook Express and other apps in the system tray can....
AllToTray allows you to free space on your taskbar by minimizing any windows to icons in your System Tray instead. It adds the option "Minimize to Tray" to the system menu of the window. If you have checked this option, AllToTray will minimize the window to your System Tray every time you minimize it. You can choose to have an icon for every window or one icon for all minimized windows. AllToTray can also show the number of minimized windows as an icon and arrange the applications by title, type or last accessed.