>>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.
>
>We tried SunFlower but the problem, also mentioned in that blog, is that it creates another icon in the tray. So, it is somewhat confusing to have such an utility to remove an icon from the tray if that utility sits there by itself.

It's funny :) In my searches I see several Addins mentioned, but I didn't read on, and I'm currently working on something else.

Sorry, hopefully you'll find a good way to get rid of the beast and share your info here and in her blog.