customer experience improvement program -- how to get rid of it?

Hi,

I recently installed dotnet 2.0 beta 2 Framework SDK and it has installed
the "visual studio customer experience improvement program" which sits, as
an icon, on my taskbar (near the clock, I forget what that part of the
taskbar is called).

I've clicked 'no I don't want to participate' but the icon remains. How do
I get rid of it, is there a service to switch off?, and how do I stop it
reloading again.

Thanks,

MS