Use this registry item for a multihomed, multicast host that is not binding to the correct network card. This can be why none of the remotes receive the multicast packets.

To specify a particular network card, specify its number. For example, to force the multicast packet to be sent from the second network card, set this registry item to 2. Although the network card order is fairly stable, the order may change according to current DHCP and RAS status. To display the current network card order, run WINIPCFG.EXE for Windows 95, or IPCONFIG.EXE for Windows NT.

Disclaimer: Modifying the registry can cause serious problems that may require you to reinstall your operating system. We cannot guarantee that problems resulting from modifications to the registry can be solved. Use the information provided at your own risk.