To expand again....sasser will not wreck your computer and 95/98 and ME computers will not be affected by it but they can spread it.
If you do get it you need to turn off system restore and go to click here for the removal tool but you still have to apply the MS patch afterwards or you could be re-infected.
The virus will hit a computer that is just browsing so there are no .exes to trigger it. It will enter through the port that you are using to browse so, in spite of firewalls blocking ports 445, 5554, 9996 , they will not stop it (as many compnaies have just found out.) The MS patch (2mb+) will stop it.
Thanks for info guys, my firewall, AVG, AdAware, spybot and spywareblaster are all up to date. These days I check daily for updates, but I will inform my dippy cousins and friends who use me to "sort out" their problems. Then they blame me a week later for causing their modem or CD drive to fail saying it was alright until you fixed it. Sound familiar?