I came to this page by searching on 'not blaster'. I was thinking 'not' because when I right clicked on the first remote procedure call listed, hoping to click on properties, nothing came up? Also the machine was updated to service pack 2? However, after running 'shutdown -a' in safe mode I was able to run a blaster fix {Symantec} tool to completion. {I did have to run 'shutdown -a' several times during the course of the fix, as the shutdown warning continued to pop up periodically.} After the tool had finished and I rebooted the machine displayed no more symptoms. I'm thinking now a variation of 'blaster'? Thanks for the tip.