Rocket Terminal Emulator FAQ

To ease you into your new software or aide in your decision making process, we've put together several of our customer's frequently asked questions about Rocket® Terminal Emulator (formerly Rocket® BlueZone®). They range from general to specific. If you don’t see the answer your question, contact us! We are here to help.

General questions

Q. I can’t find anything about the terminal emulator (BlueZone, BlueZone Web) I bought from Rocket. Where did it go? What are different editions of the product?

A. Rocket BlueZone and Rocket BlueZone Web are now combined under one name: Rocket Terminal Emulator. It comes in two editions: Rocket Terminal Emulator (Desktop Edition) which used to be Rocket BlueZone Terminal Emulation; and Rocket Terminal Emulator (Web Edition) which used to be Rocket BlueZone Web.

Q. What is Rocket Terminal Emulator (Desktop Edition)? And, what happened to BlueZone Desktop and BlueZone Web-to-Host?

A. BlueZone Desktop and BlueZone Web-to-Host have now been combined into one product, Rocket Terminal Emulator (Desktop Edition). Rocket Terminal Emulator (Desktop Edition) can be deployed either by downloading and installing the executable directly on your PC (formerly BlueZone Desktop), or by deploying the centrally configured executable from the Web server (formerly BlueZone Web-to-Host). The main difference is how the software is installed on your PC, offering you greater flexibility. Learn more about Rocket Terminal Emulator (Desktop Edition).

Q. What is Rocket Terminal Emulator (Web Edition)? And, what happened to BlueZone Web?

A. BlueZone Web is now called Rocket Terminal Emulator (Web Edition). Learn more.

Q. Why does the version number start with 10.x for Rocket Terminal Emulator. Why don’t we have 1.2.x for Web Edition or 8.x for Desktop Edition?

A. We've chosen to standardize on the 10.1.0 version number for both the Desktop and Web editions of Rocket Terminal Emulator. It recognizes the renaming of the solution, our ongoing investment in innovation in terminal emulation, as well as streamlines the version numbering across both products.

Q. Have you also changed the names for other terminal emulators (Passport, BlueZone HostFront, WebConnect)?

A. Our other terminal emulator products (Passport, HostFront, WebConnect) have not been renamed. Every customer of those products is invited to upgrade to Rocket Terminal Emulator. If you are on active maintenance, upgrading to Rocket Terminal Emulator might be included in your subscription. Chat with our terminal emulation experts to learn more.

Q. Is Rocket Terminal Emulator compatible with Windows 8?

A. Yes, Rocket Terminal Emulator has been tested to meet all of the technical compatibility requirements of Windows 8. Only "Compatible with Windows 8" software has passed Microsoft-designed tests for compatibility and reliability on PCs running the Windows 8 operating system. "Compatible with Windows 8" products install without worry and run reliably with Windows 8, including 64-bit.

Q. Is Rocket Terminal Emulator compatible with Windows 7?

A. Yes, Rocket Terminal Emulator has been tested to meet all of the technical compatibility requirements of Windows 7. Only "Compatible with Windows 7" software has passed Microsoft-designed tests for compatibility and reliability on PCs running the Windows 7 operating system. "Compatible with Windows 7" products install without worry and run reliably with Windows 7, including 64-bit.

Q. Is Rocket Terminal Emulator Windows Vista Certified?

A. Yes, Rocket Terminal Emulator has undergone the Windows Vista certification program and has been granted full certification status by Microsoft. The 32-bit terminal emulator solution was designed specifically for Windows and Internet Explorer, which makes the C++ application extremely fast and completely Windows-compliant for features such as the cut, copy, and paste short-cut keys, as well as use of the full PC keyboard.

Q. Is Rocket Terminal Emulator Windows XP and Windows 2003 Server compliant?

A. Rocket Terminal Emulator is ideal for use on a Windows 2003 Server or with Windows XP desktops. Rocket Terminal Emulator has achieved certification for the "Designed for Windows XP" Gold program from Microsoft, which requires testing through an independent third party, Veritest. The 32-bit terminal emulator solution was designed specifically for Windows and Internet Explorer, which makes the C++ application extremely fast and completely Windows-compliant for features such as the cut, copy, and paste short-cut keys, as well as use of the full PC keyboard.

Q. How do users, developers, and network administrators benefit from Rocket Terminal Emulator?

A. Rocket Terminal Emulator allows you to use Windows functions like cut, copy, and paste. You can use the full PC keyboard, just as you're used to with desktop emulation. You will also find the 3270, 5250, VT100/VT220, SCO ANSI, and Wyse 60 host session independent of the framework of the Internet Explorer browser. The browser can be viewed as a delivery mechanism for the Rocket Terminal Emulator files. Once an emulation session is launched, the role of the browser is complete, and it can be closed.


For developers, new and existing Visual Basic, HLLAPI applications, and macros can be deployed and used just as they were with desktop emulation. Most 32-bit Visual Basic HLLAPI applications can be used as-is. Older 16-bit HLLAPI applications developed for IBM PC/3270 can also be used with Rocket Terminal Emulator.

Since lower total cost of ownership (TCO) is one of the top reasons to switch to Rocket Terminal Emulator, network administrators have the most to gain by migrating to our solution.

Rocket Terminal Emulator offers a reliable and secure method of centralizing the administration of host access for your enterprise. Features like session profiles, scripts, HLLAPI application support, the ability to create and lock standard configurations and more will help lower your cost for host access ownership by at least 25%. And since most organizations license Rocket Terminal Emulator as their standard for enterprise host access, you can consolidate the use of multiple emulators to a single host access solution.

Q. What are the different deployment methods for Rocket Terminal Emulator (Desktop Edition)? Can I deploy it centrally, as an administrator?

A. Rocket Terminal Emulator (Desktop Edition) can be deployed by downloading and installing the executable directly on your PC or deploying the centrally configured executable from the Web server. The main difference is how the software is installed on your PC that offers great flexibility.
The primary advantages of centrally deploying Rocket Terminal Emulator (DE) are the efficiency, lower total cost of ownership (TCO), and for some, portal integration (the ability to launch host sessions from a corporate or organizational intranet).

With centralized administration, all configuration and management of the application is performed on the Web server. There is no need to install and configure the client software on every client PC. When a new release of the software becomes available, only the Web server needs to be upgraded. The new software will be detected and automatically downloaded to the client PC, eliminating the need to manually install an update on each desktop. This model can render significant savings for network administrators and is especially helpful if you have lots of remote users. Experts estimate that a 25% savings can be realized for host access simply by migrating to this model.

Both deployment methods provide 3270, 5250, VT100/VT220, SCO ANSI, and Wyse 60 host access, as well as FTP file transfer, and are fully compatible with Microsoft Windows. Rocket Terminal Emulator (DE) is feature-rich and is used to replace much larger and older host access solutions, Rocket Terminal Emulator has a very small footprint once it resides on your local PC. Depending on what components are loaded, footprint size ranges between 5MB and 8MB.

Q. How does central deployment work for Rocket Terminal Emulator (Desktop Edition)?

A. Rocket Terminal Emulator (Desktop Edition) is a Win32 application that provides connectivity for 3270, 5250, VT100/VT220, SCO ANSI, and Wyse 60 terminal emulation within a Web browser or as a desktop application. It also includes FTP file transfer.


Here's one scenario wherein Rocket Terminal Emulator (DE) can be used:

  1. The Rocket Terminal Emulator session is launched from the Rocket Terminal Emulator launch page. The URL http://yourservername:port or http://yourservername:port?groupName=Group_Name for no authentication method.
  2. When you opened the launch page, the Rocket Terminal Emulator launch file (bzw2h.bzlp) was automatically downloaded. The Open Web Launch utility is required to launch this file. If you previously installed Open Web Launch, double-click the bzw2h.bzlp file to launch Rocket Terminal Emulator. 
  3. When the bzlp file is launched, a control module is downloaded to your PC from the Web server. (The control module is only downloaded the first time a bzlp file is launched, or whenever the server version of the control module changes to a later version). The control module will download necessary files and create a shortcut on your PC desktop by default.
  4. Once the necessary files are downloaded, you simply access the host by launching the shortcut in your PC desktop. This is to ensure there are no required updates. Otherwise, using the local files, a connection is made directly to the host and the browser is no longer required.

Rocket Terminal Emulator is truly a two-tier solution since the host connection does not go through the Web server.

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API programming questions

Q. Can I use HLLAPI applications with Rocket Terminal Emulator?

A. Rocket Terminal Emulator supports several different versions of HLLAPI, 32- and 16-bit, WHLLAPI, EHLLAPI, and Extended EHLLAPI (EEHLLAPI).


It's compatible with any 32-bit PC application that has a Visual Basic or C HLLAPI (High Level Language Application Programming Interface) link to TN3270, TN5250, VT100, VT220, SCO ANSI, or Wyse 60 terminal emulation. In most cases, the application will work without any modification.

Q. What is the Rocket Terminal Emulator Host Automation Object?

A. Rocket Terminal Emulator offers the Host Automation Object (HAO) which is a COM object that can be loaded by any COM-compliant scripting or programming language. The HAO gives you complete control of the emulator interface and terminal window allowing sophisticated legacy integration and screen scraping. It currently supports the proprietary Rocket Terminal Emulator interface and interfaces compatible with most other emulators, making the conversion of existing applications easy.

The HAO is used by many Rocket Terminal Emulator customers in a wide variety of applications including:

  • Microsoft to embed the collection of host-based data in an Excel or Word document
  • VBScript and JScript scripts to automate data input called in Web pages that launch Rocket Terminal Emulator, then to navigate to specific host screens using data obtained from the Web page
  • Single sign-on applications to take the user ID and password from a local store and log the user into a TSO session

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Deployment questions

Q. What desktop platforms does Rocket Terminal Emulator run on?

A. Rocket Terminal Emulator can be used on any PC running Microsoft Windows 10, 8, 7, XP, or Vista operating systems.

Q. What browsers are supported?

A. Rocket Terminal Emulator can be used with:
  • Google Chrome version 60 and later
  • Microsoft Edge version 80 and later
  • Mozilla Firefox version 60 and later

For additional information, please review our more detailed list of client requirements by operating system.

Q. Can I configure my own settings?

A. The administrator has the option of allowing or locking the local configuration of your session profile. If changes are allowed, they remain local on your PC.

Q. What is the maximum number of workstations supported from a single Web server?

A. The number of workstations supported by a single Web server depends on the server's available resources, not on Rocket Terminal Emulator.

Q. What is the size of the download and how much memory does it use?

A. The total download size is approximately 1.2 MB. That size increases as additional components are added, such as scripting or the FTP client. These files are downloaded to your desktop the first time they are accessed, or whenever a new version is placed on the Web server.


Once the Rocket Terminal Emulator software is downloaded to your desktop, approximately 3.5MB-5MB of disk space is used to store the downloaded components. When the Rocket Terminal Emulator is running, approximate 9MB of memory is used. Each additional session uses less memory than the first session because the code section is shared by all Rocket Terminal Emulator sessions.

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File transfer questions

Q. What types of file transfer are supported?

A. The Rocket Terminal Emulator mainframe display client supports IND$FILE file transfer for TN3270 terminal emulation sessions. Rocket Terminal Emulator also offers a secure FTP client in addition to the TN3270, TN5250, and VT client software.

Q. How is IND$FILE supported?

Rocket Terminal Emulator supports both presentation space and structured field IND$FILE file transfer methods. Structured field block sizes can be set to 2KB, 4KB or 8K bytes. Wild card file transfer is supported for the IBM VM/CMS operating system.

Q. How is FTP file transfer supported?

A. An FTP server must be configured and running on the host system you wish to transfer files to. The FTP client can be run from the terminal emulator or run as a separate program. The FTP client has a three-window interface (PC directory, Host directory and FTP connection information) listing the PC and host files. It uses a Windows Explorer look-and-feel, and employs a drag and drop user interface. If desired, the FTP client can be configured to make an encrypted connection to the host, provided the host supports encryption.

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Terminal emulation questions

Q. What types of terminal emulation does Rocket Terminal Emulator provide?


A. Rocket Terminal Emulator provides the following types of terminal emulation:
  • TN3270 and TN3270E
  • TN5250 and TN5250E
  • VT 52/100/220/320/420
  • SCO ANSI
  • HP Character Block mode
    • HP 2392A
    • HP 70092/6
    • HP 70094/8
  • IBM 3151
  • Linux
  • VAX/AIX
  • Wyse60
  • Wyse60/AIF
  • Unisys
    • T27
    • UTS
  • ICL/VME

Q. What screen sizes does Rocket Terminal Emulator support?


A. TN3270/TN3270E screen sizes:

  • Model 2 - 24 x 80 full screen display
  • Model 3 - 32 x 80 full screen display
  • Model 4 - 43 x 80 full screen display
  • Model 5 - 27 x 132 full screen display
  • Model 3290 (62 x 160) Split/Split-V
  • Custom Alternate and default sizes


TN5250/TN5250E screen sizes:

  • Model 2 - 24 x 80 full screen display
  • Model 5 - 27 x 132 full screen display


VT 52/100/220/320/420 screen sizes:

  • 24 x 80 full screen display
  • 24 x 132 full screen display
  • 32 x 80 full screen display
  • 32 x 132 full screen display


SCO ANSI:

  • 25 row x 80 column (SCO-ANSI emulation mode)
  • 25 row x 132 column (SCO-ANSI emulation mode)

Q. Does Rocket Terminal Emulator support full 132-column display?

A. Rocket Terminal Emulator offers you the ability to view 132 columns of host information. However, we do recommend using a higher resolution Windows display in order to give you the option of using a more readable font; 1024 x 768 is a good place to start. 132-column display is supported in TN3270, TN5250, VT and SCO ANSI terminal emulation.

Q. Does Rocket Terminal Emulator support graphics terminal emulation?

A. Yes, GDDM 3179G graphics and IBM APA mainframe graphics are supported for the TN3270 emulator, as are IBM Programmed Symbol Sets A-F. In doing so, Rocket Terminal Emulator lets you emulate a combination of features found in the older 3279 S3G, 3179G and newer host graphics terminals. Though few mainframe applications incorporate the use of graphics, there are some like SAS/GRAPH from SAS Institute and IBM's GDDM.

Q. Does Rocket Terminal Emulator support SSL (Secure Sockets Layer) security for host access?

A. Yes, SSL is supported as a configuration option in Rocket Terminal Emulator. SSL security provides both authentication and encryption to prevent eavesdropping and tampering with your TN3270E, TN5250E, and FTP sessions. In order to use this feature you must be connected to a TN3270E, TN5250E or FTP server that also supports SSL security. If your host does not support it, Rocket® LegaSuite® Security Server can enable you to support an SSL connection without having to upgrade your host.

Rocket Terminal Emulator accepts the same Certificate Authorities supported by Microsoft Internet Explorer version 6. Rocket Terminal Emulator can also be configured to accept self-signed certificates, not-yet-valid certificates, and invalid certificates, if desired.

Q. Does Rocket Terminal Emulator support light pen emulation?

A. Yes, light pen emulation for TN3270 host access is supported. The light pen emulation key (cursor select key) can be mapped to a mouse button. Also, the Alt + F9 key combination is the cursor select key for the standard Rocket Terminal Emulator keyboard map.

Rocket Terminal Emulator provides you the ability to detect certain areas of a screen as a hotspot area. You can move the mouse to the text and then click or double-click the text to send the appropriate host key back to the host. You can make hotspots visible or invisible. If visible, the hotspot text will appear similar to a Windows dialog box button to indicate the text is a hotspot.

Q. Does Rocket Terminal Emulator allow the window title to be customized?

A. Yes, you may customize the items displayed on the Rocket Terminal Emulator session title bar. The following items may be displayed on the title bar:

  • Session identifier
  • HLLAPI short name
  • Session profile name
  • Session description
  • Program name
  • Separator

Q. What cursor types does Rocket Terminal Emulator support?

A. The standard Rocket Terminal Emulator alpha cursor can be configured to be either blinking or non-blinking or configured as a block cursor or an underline cursor. There is also a cursor ruler that can be turned on which displays a cross hair cursor on the screen.

Q. What fonts does Rocket Terminal Emulator support?

A. Rocket Terminal Emulator will display fixed pitch fonts. These fonts can be TrueType, OpenType or bitmap.

Q. Does Rocket Terminal Emulator support double-byte character sets?

A. Yes, Rocket Terminal Emulator supports double byte character sets.

Q. What types of cut, copy, and paste does Rocket Terminal Emulator support?

A. As a true Microsoft Windows application, Rocket Terminal Emulator allows the mouse or shifted arrow keys to be used to select a rectangular area of text. This selected area can then be cut or copied to the Windows clipboard using the Ctrl + "X" or Ctrl + "C" keys, respectively.

In addition to the standard Cut, Copy and Paste commands, the Copy Append and Paste Continue commands are also supported. Both block and stream paste modes are supported. The cursor can optionally be moved to the end of the pasted text. Auto-copy to the Windows clipboard can also be configured.

Q. Does the VT emulation support extended colors?

A. Yes, Rocket Terminal Emulator supports 16 different color attributes for both text foreground and background including normal, underline, inverse, blink, underline, and bold, and the varying combinations of these attributes.

Q. Does the VT emulation support double-height and double-width characters?

A. Yes, double-height and double-width characters are supported.

Q. Is a VT scroll back buffer supported?

A.Yes, Rocket Terminal Emulator supports a VT scroll back buffer. When enabled, you can scroll back a specified number of lines. Although the default buffer is 24 lines, this may be set to any number between 24 and 2500.

Q. Can the VT scrolling speed be configured?

A. Yes. Rocket Terminal Emulator supports DECSCLM, smooth or jump scrolling.

Q. Does Rocket Terminal Emulator support SSH?

A. Yes, SSH2 is currently supported in the VT client as is SSL.

Q. Does Rocket Terminal Emulator support VT420 terminal emulation?

A. Yes, Rocket Terminal Emulator supports the VT-420 terminal emulation escape sequences and keyboard.

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Rocket Terminal Emulator keyboard questions

Q. How do I map the keyboard?

A. Rocket Terminal Emulator's keyboard definition can be easily changed to any configuration you desire via the following steps:
  1. Select Options > Keyboard to open the keyboard Options menu. By default, the mappable functions are listed in the functions list box.
  2. Select the desired function (for example, Clear.)
  3. Click the New button and click on the desired key within graphical keyboard dialog. This will map the function to the key. Click OK to save your changes.

Q. Are 122-key keyboards supported?

A. Yes, Rocket Terminal Emulator supports the Key Tronic 122-key keyboard when used with Windows 98 and 95.

Q. Is keyboard type ahead supported?

A. Yes, keyboard type ahead is supported and this option can be enabled or disabled. Rocket Terminal Emulator can store up to 256 keystrokes.

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Rocket Terminal Emulator printing questions

Q. Does Rocket Terminal Emulator support TN3270E host printing?

A. Yes, Rocket Terminal Emulator supports TN3270E IBM mainframe host printing. Both 3287 LU-Type 1 and LU-Type 3 host printer sessions are supported.

Q. Does Rocket Terminal Emulator support TN5250E host printing?

A. Yes, Rocket Terminal Emulator supports TN5250E iSeries printing: IBM 3812-1 (Single-byte) Host Print Transform and iSeries Extended SCS (Non-IPDS Printing) or IBM 5553-B01 (Double-Byte). A TN5250E Host Print Key is also available.

Q. Does Rocket Terminal Emulator support VT printer sessions?

A. Rocket Terminal Emulator supports VT Follower printing.

Q. Does Rocket Terminal Emulator support Print Area?

A. Yes, Rocket Terminal Emulator can be configured so that it will print all or part of multiple screens automatically. The user must define specific "Print Area" strings that uniquelly identify the print function the user wants the system to execute (such as defining a string that uniquely identifies the last screen to print). When the print screen function is selected, Rocket Terminal Emulator searches the screen to see if it matches a defined Print Area. If so, the screens are printed. If not, the single screen is printed as a normal print screen.

Q. Does Rocket Terminal Emulator offer a print server?

A. Yes, Rocket Terminal Emulator offers a TCP/IP print server. It is a Line Printer Daemon (LPD) allowing printer data streams originating from a variety of host systems to be printed over TCP/IP to any Windows printer, using the LPR/LPD protocol. You may use the Rocket Terminal Emulator TCP/IP Printer on a shared PC as a print server, allowing multiple users to share a single print queue, or run it on every PC, giving each user a unique print queue.

Q. Does Rocket Terminal Emulator support transparent printing?

A. Yes, Rocket Terminal Emulator can be configured to use transparent printing. When special control codes or escape sequences are being sent to the printer, the Passthrough - Send All Data Directly to the Printer option is used to ensure that these special codes are printed correctly.

Q. Can printer orientation be saved in the session profile?

A. Yes, printer orientation can be saved in the session profile for both TN3270E and TN5250E host printer sessions.

Q. What options are available for host screen prints?

A. Rocket Terminal Emulator can optionally print a configurable title at the top of each host print screen. Margins can be set and multiple host screens can be printed on the same page.

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Pricing questions

Q. What is the difference between named licensing (per seat) and concurrent licensing?

A. Rocket Terminal Emulator offers both kinds of licensing. Named licensing (per seat) is typically suitable for a smaller organization where you know the exact number of users and a seat is purchased for each user. Concurrent licensing is much more advantageous as it allows you to purchase a pool of licenses all your users borrow from.
Using the License Manager, when you launch Rocket Terminal Emulator, Rocket Terminal Emulator checks out a license from the License Manager. You retain the license during your active, connected session. Once your session is terminated, the license is returned back to the License Manager to be used by another user when necessary. This provides much more flexibility to your organization where your number of host users can vary, or there are users who do not access the host on a daily basis.
Regardless of which license type is preferred, both are considered a perpetual license, and your organization owns the software.

Q. How is the application licensed when published from a Microsoft Terminal Server (with or without Citrix MetaFrame)?

A. Publishing Rocket Terminal Emulator from a Microsoft Terminal Server, with or without Citrix MetaFrame, is ideal for many organizations. You simply install Rocket Terminal Emulator (Desktop Edition) on the terminal server and you or any user with access to the server can use the application without having to install and run Rocket Terminal Emulator (DE) on the local workstation. And you can maintain your own set of configuration settings.
A concurrent software license purchase is required for this scenario. The License Manager is used to manage the pool of concurrent licenses.

Q. Can I use Rocket Terminal Emulator on my home PC or laptop, and is there a charge?

A. This is another advantage that concurrent licensing can provide. Regardless of where you use the Rocket Terminal Emulator software, or how many machines its installed on, you can use the Rocket Terminal Emulator software as long as there is a concurrent license available to use from the License Manager.

Q. Does the license price include support and maintenance?

A. Yes, both named licensing (per seat) and concurrent licensing models include technical support and software maintenance for the first year. A subsequent maintenance payment would be required to retain support after the initial year.

Q. Does the maintenance and support plan include upgrades?

A. Yes, software maintenance includes upgrades of the Rocket Terminal Emulator software as well as any new software that would be required due to your operating system upgrade..

Q. Does the price include SSL security

A. Yes,support for SSL is built right into the software. There are no additional fees required to support a secure connection using SSL.

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