Файл lmhosts.

In addition to requiring an IP address, network and dial-up connections on a TCP/IP network may require a mechanism to map computer names to IP addresses. Four name resolution options are available: DNS, WINS, broadcast name resolution, and the Hosts and Lmhosts files.

In small networks where IP addresses do not change, network and dial-up connections can use a Hosts or Lmhosts file for name resolution. By using these files on the local drive, you do not need to transmit name resolution requests to a WINS or DNS server and wait for the response.