>>Ok, read this blog http://blogs.technet.com/kclemson/archive/2003/10/22/53859.aspx
>>
>>Last two comments seems to indicate it's not an easy task:
>>----------------------------------------------------------
>>So i've read through the blogs
>>
>>Has anyone found a way to remove the Outlook System Tray icon (not just hidden) without installing and third party software.
>>
>>It's very annoying and i've got much more important system tray icons (the new mail icon for example is much more useful - at least it is telling you something!)
>># July 9, 2004 4:01 AM
>>LanFear said:
>>I agree, the permanent Office icon needs to be removed from the tray! :) My desktop space is valuable!
>>===================
>>Read also Mike O comments to her blog.
>
>Thanks, having reading that, there doesn't seem to be a way to remove that. I am wondering how I succeeded to remove it prior to reinstalling Windows XP Pro SP2.

I don't know. May be there is still a way, but quick searches proved otherwise so far.

There are addins that can do that, though.