It is a bug. It has no meaning. However, it does happen when you've used a
feature based on terminal services--remote assistance, remote desktop, or
fast user switching.
Hopefully on the next version of MSAS they would update
the Microsoft Antipsyware main web page and explain why
icon changes to many different colors. It would really
help if they at least update the site and put bugs that
has been discovered on the site so people don't have to
post the same thing over-and-over again.
