this has now happened two times on two different machines:
received an email (outlook express on xp sp1) this morning which was caught by avast! as containing "Win32.Dialer [Trj]".
avast! offered several options (rename, move, repair) how to deal with the infected email attachement (named xxx_avi.zip).
however, what ever option i chose, avast! balked on me with "File is not packed. Cannot process.". This dialog referenced a zip-file in my local temp directory. i inspectd this temp directory and the file simply was not there ...
i could not get rid of this dialog, exept hitting the "ok" button. the dialog then closed, but immediately opened again. i had to close oeutlook express to escape from tis recursive behavior.
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drahnier