Can web search cause infection?

[justuff]

Originally Posted by bo.elam

Sometimes a sandbox can not be deleted because a file in it is being used by another program. Sort of the same thing can happen with the registry. If the message from sandboxie said that it was unable to undo a registry change, this is probably the message that you saw at that time. Read the explanation to why it happens and the solution.
http://www.sandboxie.com/index.php?SBIE2208

Bo

You could be right about this, but at the time that I got the message I was at a site that has since been listed as untrustworthy by siteadvisor. It was so long ago that there is no way to be sure.