How to stop XP from displaying unread messages count on Welcome Screen?

I received few mails from users requesting HowTo on disabling unread message count from Welcome Screen.
To stop XP from displaying count of unread messages, Open registry and navigate to [HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\UnreadMail] and look for the data key "MessageExpiryDays". If you do not see this key, create one DWORD key by the name "MessageExpiryDays". Setting its value to 0 would stop Windows XP from displaying the count of unread mesages.