Click on the link below to download the stinger program to remove the virus from your computer. The Microsoft patch fixes the problem of the shutdown, but does not remove the virus from your computer. Also, be sure to follow the insturctions to disable the system restore so that it does not come back. It sounds like they don't know if the msblast.exe file can cause futher problems, so it would be better and play it safe and remove the file from your computer with this program.

http://vil.nai.com/vil/content/v_100547.htm