If you're using a broadband connection, or you need to check your email or calendar all the time you'll probably like to keep Outlook open all the time. The same goes for Exchange clients that want to work online and keep their client running. Keeping the application open will consume space on your taskbar.

To minimize Outlook XP to the system tray, start regedit and follow the next steps:

1. Open the registry editor Start -> Run, type regedit and click OK.
    
2. Expand HKEY_CURRENT_USER\Software\Microsoft\Office\10.0\Outlook\Preferences (see picture 1).
    

   Picture 1

   
   
3. Go to Edit -> New and create a new DWORD value with the name of: "MinToTray"
    
4. Give it a value of "1" (0 to disable MinToTray).
    

5. The modifications you made will be in effect after you restart Outlook.