I'm not sure if HijackThis can deal with this particular item or not.
Hijack this is a very powerful, last resort type of program which is
generally best used in conjunction with help from those who deal with the
findings of the log created by the HijackThis scan. It does nothing in the
scan itself; it merely says what is present and/or running on your PC. The
items must be checked-marked to be "cleaned". You must know *exactly* what
you are checking-off before you proceed. If you don't, you can quite
possibly disable many useful and vital functions of your PC. Remember; read
the Tutorials, and seek help at SpywareInfo Forums, Net-Integration, or
TomCoyote forums for safety's sake.