MacTCPPart of earlier versions of {MacOS} that provided access to {TCP/IP} services. {Apple} removed MacTCP from MacOS in revision 7.5.3 in favor of the new {OpenTransport} (OT) TCP/IP stack. However, MacTCP lives on as a community development effort. See also {MacPPP}. [How did it work? Where was it from?] (2000-06-25)