Sequenced Packet Exchange
<networking, protocol> (SPX) A {transport layer} {protocol}
built on top of {IPX}. SPX is used in {Novell NetWare}
systems for communications in {client/server} {application
programs}, e.g. {BTRIEVE} ({ISAM} manager).
SPX is not used for connections to the {file server} itself;
this uses {NCP}. It has been extended as SPX-II. SPX/IPX
perform equivalent functions to {TCP/IP}.
(http://developer.novell.com/research/appnotes/1995/december/03/04.htm).
[Better reference?]
(1999-05-27)