Apparently, your computer has an unwelcome visitor (VIRUS) known
as the WM32 Blaster/Lovsan WORM.
It entered the computer through your internet connection because the "firewall"
was not properly enabled and essential critical updates were not installed from
the Windows Update website. For instructions on fixing the problem, visit:
Sounds like you have the same germs as me ... which is
the MSBLAST thingy (easy enough to fix once you get
yourself offline) or even this damn SOBIG virus ... which
I'm stuffed with too