Prob. with Microsoft Office and MP

Hey you guys i'm doing IT and PC tech for an office and i'm running into a prob. with the secretary's pc.

She tried installing one of those annoying Radio Tool-bar which in my opinion should be out of law.
anyway the activation of IE and thus the toolbar caused all MS Office applications to start lagging and working really bad, even not responding most of the times i tried. and this continues even after i closed IE.
restarting the PC solved the problem UNTIL i started IE (thus the toolbar too) again.
the only lead to the solution i could find, is that the toolbar connects to the radio channels using Media Player.
then i tried running media player by itself after restart and it caused those horrible lags again.
so the problem is probably with media player, i guess.
oh and btw, the pc is a totally new pc, less than a week of running in the office, running avg free, and a legal updated copy of windows.

any idea to a solution?

tried updating WM9 to WM11, didn't work.
and left the computer to update the remaining Windows Updates over night.

*this is not the toolbar she downloaded, but the same style, same media player additiong to it.
http://www.toolbar-radio.com/images/demo.gif

yeah... right... but i'm not her boss, and actually she's only hearing radio, and why not? even if i was her boss i don't see a reason why she won't hear radio.

anyway i need to fix this...

well... my first reaction when i heard about this issue was just the same as you.
take it off if it does problems.

but it need to fix this...
and the problem seems to happen with all those Media Player-Radio toolbars.
the Yahoo toolbar doesn't affect this.
and even running media player as it is affects the MS Office.

anyway, i need to fix this. of course i can kill the secretary, but that's just gonna get me fired, and in jail and stuff like that.