what is globalroot\systemroot\system32

I am using IE 8 and every time I open the browser I get the message

 

The application or DLL globalroot\systemroot\system32\ESQULeppfmuwuhepxqprqisflxbwwbbxinps.dll is not a valid image. Please check this again your installation diskette.

 

Anyone have a clue how to sort this out?