Event ID 8 from crypt32 appears after installing OfficeScan 10:
Event Type: Error
Event Source: crypt32
Event Category: None
Event ID: 8
Date: <date>
Time: <time>
User: N/A
Computer: <computer name>
Description:
Failed auto update retrieval of third-party root list sequence number from: <http://www.download.windowsupdate.com/msdownload/update/v3/static
/trustedr/en/authrootseq.txt> with error: This network connection does not exist.

For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.