ERROR MESSAGE OPERATION COULD NOT BE COMPLETED

Hi,
please help me
I have a windows XP Proffesional
intenet explorer 7 ( I think )
I have had viruses on my computer, but they are all fixed by now,
but it knocked out my printer,
so that my computer does not see my printer installed
I have a HP laserjet printer 1100
and when I tried to go to control panel printers and faxes,
add a printer it does not see it,
even though I installed my HP drivers
error message says
" operation could not be completed,
the print spooler service is not runing "
even though I installed the drivers,

please advise,
thanks
Sigmund