Liam, thanks for the Belarc link - excellent tool.
Amofw, thanks you for your link to the M$ fix for the worm. My son has a non-updated computer (XP Home), but was smart enough not to log on when he heard that the worm was in the wild. I downloaded the M$ fix to a memory stick, installed it on his machine and now it's on-line catching up on his updates. Only 3 hours to go at 40k
AA