The command line should be “PacketSniffer 1 -promisc” but not “PacketSniffer index 1 -promisc”. Also are you sure that there are packets available from interface with index 1? Usually (for Windows 2000/XP/2003) this is dial-up interface (NDISWANIP) for which there is no sense to use promiscuous mode (it is point-to-point connection), and it can evemn affect interface normal functionality.
