Whatis the icon, it sounds to me like you have installed some adware/spyware... Simply use an adware/spyware removal program to get rid of it...
Download one or both of the following:
-
LavaSoft Ad-Aware 6.0 SE
-
Spybot Search and Destroy
If you have accidentally installed the messenger plus! optional sponsor then you can uninstall it in add/remove programs by selecing "Uninstall the Sponsor Only" when you press "Change/Remove"
