easy search bar

since yesterday when i start my IE it opens with an Easy Search page, instead of my google starting page, i have tried to re-set the startpage, but it doesn't help, does anyone know how i can remove the easy search toolbar, it says it is sponsored by google, but google denies this. this is the exact line in the browser:
C:\Documents and Settings\jakob.JAKOB-FRANS\Local Settings\Temp\sesqfmpgfsk.html

it says easy search by google, it has a lot of porn and other commercial stuff on it

e-mail me at: [email protected]

thanks for anyone who is willing and able to help me