*** Outlook 2003 has the capability to minimize to tray built in *** If you want to “tray” Outlook you need to create this registry key and set the value of MinToTray to 1. [HKEY_CURRENT_USER\Software\Microsoft\Office\10.0\Outlook\Preferences] “MinToTray”=dword:00000001 To start the registry editor, from the Start menu, Run dialog, enter regedit. That will open the registry editor. Browse down the tree until you get to Preferences under Outlook. On the right side of the screen, right click as choose New | DWORD, as shown in the screenshot. Name it MinToTray and change the value to 1 (right click on it after naming …