AVG Free version 7.5.484 [virus database 269.12.0/961] tells me that
WinPcap_beta_3_1.exe and wpcap.dll contain "Trojan Horse
BackDoor.Generic8.DHX". Are these false positives?

AVG 7.5.476 [269.11.19/953] does not report a trojan in the same files.

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Ian