z/Scope desktop small icon

z/Scope Desktop
Main Features

The fastest and more reliable terminal emulator. A classic but modern multi-protocol, multi-host terminal emulation, suitable for all Windows versions; from XP to the latest Windows 11.

zScope Terminal emulation

Terminal emulation
Support for ANSI, VT52, VT100-VT420, TN3270E and TN5250E.

printer emulation

Integrated printer emulation
TN3287 and TN3812 emulation are supported.

tabbed interface

Tabbed interface
Up to four displays in tiled mode with tabbed multi-session/multi-host.

zScope File transfer

File transfer
Integrated FTP client, IND$FILE, KERMIT, X/Y/Z-MODEM transfer, with queue management.

zScope Security

SSL/TSL and SSH 1/2 support.

Keyboard customization

Keyboard customization
z/Scope, IBM, EXTRA, IRMA and RUMBA keyboards with full Keyboard Remapping, Multiple Keyboard Profiles and Keypads.

For Developers

Open Host Interface Objects (OHIO)

OHIO addresses the need for a standardized advanced programming interface that can access host data. OHIO does not modify the TN3270/TN5250 protocol or datastream but instead provides a common access method to host data once it arrives to the client. It uses an Object Oriented approach to divide the data into logical objects, and provides methods on those objects to allow standard access to the host data.


HLLAPI is a standard programming interface that provides access to a host emulator session. Functions are provided for reading host screen data (such as the characters and attributes), for sending keystrokes, and for performing other emulator-related functions.
The EHLLAPI interface is a single call-point interface. There is a single callable API through which all EHLLAPI functions are requested. On each call to the interface the application provides a function number which identifies the function requested, a pointer to a data buffer, a pointer to the length of the data buffer, and a pointer to a return code.
WinHLLAPI is based on the familiar EHLLAPI.API. It encompasses all of its existing functionality and adds extensions that take advantage of the Windows message-driven environment.

Competitive advantages

Cost efficient

Budget Saver

Helps reduce your IT budget.

Effortless Control User friendly

Effortless Control

Offers the most intuitive, user-friendly and task-oriented interface.

Beter and competitive

Unbeatable Value

Better functionality than all existing products, at the most competitive price.

Future-proof technology

Future-Proof Technology

Designed to run on the latest versions of Windows®, eliminating the need for troublesome and expensive backward compatibility.

Intuitive desktop terminal emulation

At a Glance...

The experienced developers of z/Scope set out from the beginning to offer our clients a robust, updated, and quality product. z/Scope arises as an alternative to the old terminal emulators, offering extensive functionality at a competitive price.

z/Scope offers everything you need to interact with hosts over TCP/IP and SSL protocols, leaving behind technologies that have become obsolete. The result is an agile, fully featured and innovative solution that will radically change your previous experience with terminal emulators.

Since it is so easy to configure and even easier to use, it has become an ideal terminal emulation solution providing user-friendly and task-oriented interfaces, which make for a rapid and more pleasant learning curve for end users.

Increased Productivity

All z/Scope features contribute to improving your terminal emulation experience. z/Scope users are able to save time and PC/Server resources, enjoy a beautiful interface, have all the functionality that they need, with the necessary technical support backing them up, for a minimal investment.

z/Scope offers a powerful, modern and feature-rich terminal emulator that helps reduce your company’s IT budget. Find out which edition is best for you.

increase productivity

System Requirements

Hardware Requirements

Pentium 2 or equivalent computer/processor. Recommended: Pentium 3 or superior.
256 Mb Memory (RAM).
50 Mb free of free disk space.

Software Requirements

Microsoft Windows Operating System:
• Windows Server 2003
• Windows Server 2008
• Windows Server 2012
• Windows Server2012 R2
• Windows Server 2016
• Windows 10
• Windows 11
• Windows 8
• Windows 7
• Windows Vista
• Windows XP and older (ME/2k/98SE/NT)
• z/Scope is compatible with 32-bit and 64-bit Operating Systems

Tailor-made assistance for your project

With over 20 years of experience in Mainframe Modernization, Legacy Extension and Web Enablement, we know that extending a legacy app to new interfaces can become a real challenge. That’s why we count with a collaborative support platform to provide live assistance to your project. Let’s schedule a Free Custom Demo so we can show you the advantages of z/Scope Desktop.