Live OneCare Scan reports Worm:Win32/Swen.A@mm

"How to remove this software" says 7 listed items are contained in email(s).

"File Locations": two are .nst files and five are .ost files

"More Information" typical example of six items:

Message.1918: "[wcjxssynjx@xxxxxx_microsoft.com]": Attachment.2006:
"q927819.exe"

"More Information" example of one item:

Message.1749: "[iwapijbvmlxrm@xxxxxx]": Attachment.1833:
"Update72.exe"

I receive this same report daily, at a minimum, and have been unable to find
the source, which I am directed to delete. I would appreciate assistance
interpreting these items so I can locate the source.

Thank you for your consideration . . .