On non-networked machines we can manually update the AVAS definitions by manually copying the files from "C:\Program Files\Common Files\Symantec Shared\VirusDefs\'yyymmdd.rev" folder and place them into the target machine's 'incoming' subfolder (same folder path). The SEP client will usually pick these up within 5 minutes.
Is there a way to do this with the PTP and NTP definitions?