InterCon Systems Corporation (a Virginia Corporation) was founded in April 1988 by Kurt D. Baumann and Mikki Barry to produce software to connect Macintosh computers to other computers. At the time, there was no real concept of the Internet and there was still a question of whether the TCP/IP protocols or would be adopted widely. Over the next 9 years, the company grew from three employees to over 100 and sold software in the US, Europe and Japan.
In June 1995, InterCon was acquired by PSINet and continued to sell and maintain its suite of TCP/IP software.
In February 1996, PSINet merged InterCon with Software Ventures (another Macintosh communication software company).
In February 1997, InterCon's engineering group and its products were sold to Ascend Communications.
In 1988, InterCon was pursuing two product lines, TCP/Connect (based originally on NCSA Telnet), and an email product. Unfortunately, the licensing for the email product fell through in negotiations, so it was never sold, and InterCon would have to wait a few more years (until TCP/Connect II) before it could provide email to customers.
TCP/Connect was InterCon's flagship product. Launched at Macworld Conference & Expo in August 1988, the product provided the same features as NCSA Telnet, with commercial technical support as its only significant added benefit. This was to change rapidly over the next few months, and by October of that year, InterCon was showing the product at the first InterOp Expo with new features including a graphical FTP Client (one of the first on the Macintosh) and IBM 3270 emulation.
Over the next few years, InterCon added more terminal emulation and file transfer capabilities to the product, but no other major protocols until the product was replaced with a significant rewrite: TCP/Connect II.
TCP/Connect II was to remain InterCon's flagship product from 1990 until 1995. Although TCP/Connect was primarily a terminal emulation and file transfer program, TCP/Connect II branched out into a full-fledged internet suite. At introduction, it featured email and network news reader support along with additional terminal emulations in addition to the already-popular IBM 3270, and DEC VT-240 emulations.