IE 8. Tried 9 but didn't like it.What browser are you using?
If it's Firefox you may find it in Tools/add-ons and remove it from there.
I'm not a computer buff but have had sa similar problem recently.
Sorry if I'm way off beam.
Norm
When I right click the icon it opens up the app, no unpin option is there.Right click the icon on the taskbar and click "unpin from taskbar", if it's hanging around after you quit it.
If you just need to kill it, you can quit it from the same contextual menu.