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Flynet Viewer Studio WS Modernisation and Migration for Mainframe iSeries UNIX VMS and MultiValue Data Sheet

Flynet Viewer Connects to Many Popular Systems and Protocols

Our customers run large IBM Mainframes, some of the largest AS400's/iSeries in the world and a number of different UNIX/Linux variants as well as Pick / MultiValue Database systems. The Flynet Emulation service connects to these protocols on one side and provides a uniform API on the other.

Supported Systems and Protocols:
  • IBM Mainframes - TN3270
  • AS400 / iSeries / IBM i - TN5250
  • UNIX / Linux / AIX - VT100, VT220, VT320, SCO ANSI, ADDS ViewPoint, Wyse 50, Wyse 60
  • DEC-VMS / OpenVMS - VT100, VT220, VT320
  • Tandem Nonstop - TN3270
  • Dell UNIKIX - TN3270
  • Pick / MultiValue - ADDS ViewPoint, VT220, SCO ANSI, Wyse 50, Wyse 60, AccuTerm
  • FIPS 140-2 compliant

Multi-threaded Robust Server that runs as a standard Windows Service

A single Flynet Server installation can support over 500 simultaneous clients (250 is recommended for high usage scenarios) at speeds which surpass the desktop equivalent solution. In addition, the multi-threaded core at the heart of the Flynet Viewer server platform ensures a minimum network footprint, unburdening heavily trafficked networks. Flynet Viewer server runs on Windows Server (2008, 2008 R2, 2012, 2012 R2 and on Azure).

The Flynet Server code was never part of a desktop terminal emulator; from its origins it was designed to be a highly efficient multi-threaded server side core service. This means that Flynet Viewer can support more concurrent sessions on any given server configuration than any other browser delivered emulation solution.


All Flynet Viewer communications made between the server and host are made over a telnet connection secured by a SSL/TLS wrapper. All Flynet Viewer communications made between the application server and the client are primarily conducted using WebSockets and where this is not supported HTTPs is used.

  • Supports Secure Sockets Layer (SSL v3.0 and TLS v1.0 SSL) encryption.
  • Provides SSL authentication using digital client certificates, user generated as well as third party. Standard authentication technology is built into Flynet Viewer.
  • FIPS 140-2 Validated Cryptographic Module .
  • Supports NT domain authentication / Active Directory / Azure Directory authentication.
  • Supports most off the shelf and proprietary IAM and SSO solutions with templates available for integration.

Comprehensive .NET API Library

Applications that utilize the Flynet Emulation Service, such as the FVTerm Pure Web Terminal Emulator Web Application, do so with the Flynet ViewerLib .NET Application Programming Interface.

By the use of shared memory and native Windows Synchronization objects, the performance of the API through all ranges of application challenges is unsurpassed.

The functionality and proven performance of the API has been strengthened through a decade of directly developing customer applications with the API by Flynet, as well as creating application generators that leverage its power.

Microsoft Management Console Snap-In

This standard Windows Administration Application can be run stand-alone or added to an Administrator's MMC environment to provide integrated runtime management of the Flynet Emulation service. It is an excellent tool for both Administrators and HelpDesk personnel as users can be assisted directly through the use of the built-in terminal emulator.

It provides the ability to configure one or more Flynet servers so that from one view, multiple Flynet Servers can be monitored and managed.

Flynet MMC Snap-In Features
  • Add and Configure Multiple Flynet Servers
  • Separate No-Charge Installer available for installation on Administrator or HelpDesk PC
  • View Session Status for a configurable range
  • Start and Stop Sessions
  • View a Session in a Terminal Emulation Window - Can interact with the session

Full Function Administration App

This application provides similar functionality to the MMC Snap-In but has more comprehensive configuration capabilities. All host definitions and properties are created and managed with the Administration App.

In addition, easy access to the Trace Viewer and original Screen Recording App is provided with menu options

Administration App Features
  • Configure new host connections and manage existing ones
  • Configure Service Settings
  • Launch Trace Viewer, Screen Recorder and Screen Recordings Viewer
  • View Session Status for a configurable range
  • Start and Stop Sessions
  • View a Session in a Terminal Emulation Window - Can interact with the session


  • Central configuration allows the system administrator to tailor the user environment with keyboard mapping, fonts, user-specific LU or device names, color/attribute mapping, toolbar functions, customizable session descriptions and more.
  • Text-based configuration files allowing administrators to easily find and edit entries in the configuration files either manually or programmatically.
  • Multiple User Configurations
  • Provides dynamic device name/logical unit (LU) assignments based on log-in, ensuring users always get the correct display and printer sessions. Flynet Viewer supports completely custom configurations assigned on a group or user basis, the number and types of sessions, and specific device or LU assignments.

Taskbar Notification Icon and Actions

Included with the Emulation Service is a handly applet that runs in the Taskbar Notification area. It provides status information on service starts, stops and restarts. In addition, it provides convenient menu items for launching various utilities as well as starting, stopping and restarting the service.

Extensive Local and Online Help

The Help for Flynet Viewer is extensive and covers all areas of using the product as a terminal emulation server, a development platform and integration application server.