3270 Emulators – Host Explorer


HostExplorer allows connection to enterprise business-critical information
and applications – across all platforms, with no barriers. It provides fast,
robust, and stable connection from a desktop to enterprise hosts, including IBM
mainframes systems. Emulating TN3270E, HostExplorer seamlessly integrates into
the UConn network environment.

For more information on “Host Explorer” select


This package is available only to UConn faculty, students, and staff. If you are not connecting from the 137.99 (uconn.edu) domain, you will not be able to download the software. Those using a different internet service provider (ISP), can call the University ITS Help Desk at 860-486-4357 for assistance.




Select the Desired Platform: Windows         Macintosh

Special Needs

The distribution pages contain detailed instructions on downloading and installing 3270 emulation programs for Windows and Macintosh platforms. They contain many images and therefore may take a while to load on low-speed connections.

Other Information

Host Explorer Update:  Users with Host Explorer version may experience problems with cut/paste, (on a mod 4 or mod 5 screen size) and when utilizing the File Transfer utility. These problems can be resolved by updating Host x using the Open Text Update feature. To launch Open Text Update, navigate to your Open Text Connectivity Product folder. In the Windows start menu open Programs -> Open Text Connectivity v9.0 -> Administrative Tools and select Open Text Update. Then select Open Text Host and click “Check for Update”. This will require the PC to be restarted and it will also show as being version