Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!swrinde!sdd.hp.com!uakari.primate.wisc.edu!dali.cs.montana.edu!milton!horker
From: horker@milton.u.washington.edu (Rand al'Thor)
Newsgroups: comp.os.os2.misc
Subject: What ISV really means:
Message-ID: <1991May4.023209.7173@milton.u.washington.edu>
Date: 4 May 91 02:32:09 GMT
References: <1991Apr22.225729.24613@bronze.ucs.indiana.edu> <1991Apr24.130045.26467@watson.ibm.com>
Organization: University of Washington, Seattle
Lines: 1

How about Integrated Systems Vendor?  I am pretty sure that is it.