Windows NT 4.0 Support for Multicast TCP/IP Packets

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This article was previously published under Q179982

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SUMMARY

You cannot route multicast Transmission Control Protocol/ Internet Protocol (TCP/IP) packets with Microsoft Windows NT 4.0.

Microsoft Windows NT does not support the ability to route multicast packets, or to act as a multicast TCP/IP server.

Windows NT can receive multicast packets as a client for use with a program such as Microsoft NetShow, but it cannot act as a server or router of multicast packets.