Read here:

http://www.safersite.com/pestinfo%5Ck%5Ckeenvalue_myfreecursors.asp

You probably have other spyware, adware, BHOs and such unwanted guests on
your system as well.  Get a copy of AdAware from http://www.lavasoftusa.com,
install it, run it and load the latest updates, then scan your system and
clean everything it finds.  Restart the system and run it again.  Keep
running, cleaning and restarting until the system is clean.