-- In addition to what Judy requested, you can probably go ahead and do the following:
Scan with HijackThis and Check the Boxes for the following, if they remain:
O2 - BHO: MSVPS System - {F4CF814F-970F-405D-A42C-0CE06EB97373} - C:\WINDOWS\mxduo.dll
O21 - SSODL: wmpdev - {0ADBCBB0-6816-4B76-BFC2-782D9814C633} - C:\WINDOWS\wmpdev.dll
O21 - SSODL: wmphost - {11FB4783-C8C2-4D03-9BC8-79A67403D27D} - C:\WINDOWS\wmphost.dll
Make sure All Browser Windows are Closed and then Click FIX.
THEN:
Please Boot to Safe Mode with the Viewing of Hidden Files Enabled and navigate to and DELETE the following if they should remain:
C:\WINDOWS\mxduo.dll
C:\WINDOWS\wmpdev.dll
C:\WINDOWS\wmphost.dll