Information Center

Preload Options

Overview of Preload Options
Preload Options functions
    3270
    5250
    Other sessions
    Connectivity
    Features1
    Features2
    Codepages1
    Codepages2

Overview of Preload Options

Use the Preload Options window to control the initial download size by specifying the Host On-Demand components to be included in the initial download. This allows you to select only frequently used components. All other components are downloaded as needed. If the user accesses a function for which the components have not been downloaded, the component will be downloaded at that time.

If you use a Java 2 download client, you will not be able to download additional components after the first download. You should include any component you will need in the initial download. For more information, refer to Limitations for Host On-Demand.

Select the checkbox beside a component to include it in the initial download. If you have disabled certain functions, you can deselect those components so they are not downloaded. If you do not want a component included in the initial download, deselect it. Use the Select All and Deselect All buttons at the bottom of the panel to select whether all displayed components will be included in the initial download.

Auto Select

If you are using the HTML-based model in the Deployment Wizard, an Auto Select button is available. If you click this button, it will automatically select the components needed to run the defined session types and features and remove the components not needed or disabled. For example, if a host session is defined, Color Remap will be included unless the Color Remap function is disabled in the Disable Functions panel. Other components, like Import/Export, will be included unless both Import and Export are disabled in the Disable Functions panel. For other Deployment Wizard models, the default is that all components except the codepage components are selected and included in the initial download. If you do not want components included in the initial download, deselect them.

Download Size

The size (in KB) of the components is displayed in parenthesis beside the component name. The bottom of the panel displays a running total of the size requirement for all selected components. This running total is updated whenever a component is selected or deselected. The actual download size also depends on whether you need to download jar files for Java 2 browsers or cab files for Internet Explorer; you can see either total size by selecting the appropriate archive type in the drop-down menu. The default is to show the jar size for Java 2 browsers.

Shared Components

Components marked with an asterisk share files with other components. Therefore, removing a component marked with an asterisk may not reduce the download size if other components using the same files are still selected. The size indicated for these components is the maximum that the total download size will increase or decrease when selecting or deselecting them.

The following table lists all the components that share files with other components. This information is subject to change. If the information changes with a service update, the changes will be listed in the service update readme.

Component Shares files with these components:
3270 Sessions 3270 Printer Sessions
3270 File Transfer 5250 File Transfer, Macro Print, All Macro Functions, Change Session Properties, Toolbar Customization, Programmable HOD API
Macro Print 3270 File Transfer, Macro Print, 3270 Printer Sessions, 5250 File Transfer, 5250 Printer Sessions, VT Sessions, All Macro Functions, Toolbar Customization, Programmable HOD API
3270 Printer Sessions 3270 Sessions, Macro Print, 5250 Printer Sessions, VT Sessions
5250 Sessions 5250 Printer Sessions
5250 File Transfer 3270 File Transfer, Macro Print, All Macro Functions, Change Session Properties, Toolbar Customization, Programmable HOD API
5250 Printer Sessions Macro Print, 5250 Sessions, 5250 Printer Sessions, VT Sessions
VT Sessions Macro Print, 3270 Printer Sessions, 5250 Printer Sessions
SSL Client Authentication Support View Security
View Security SSL Client Authentication Support
Change Session Properties 3270 File Transfer, 5250 File Transfer
All Macro Functions Macro Print, 3270 File Transfer, 5250 File Transfer, Toolbar Customization, Popup Keypad, Programmable HOD API
Edit Keyboard Mappings Toolbar Customization, Popup Keypad
Toolbar Customization Macro Print, 3270 File Transfer, 5250 File Transfer, All Macro Functions, Edit Keyboard Mappings, Popup Keypad, Programmable HOD API
Programmable HOD API 3270 File Transfer, Macro Print, 5250 File Transfer, All Macro Functions, Toolbar Customization
Chinese (Simplified) Chinese (Traditional), Japanese, Korean
Chinese (Traditional) Chinese (Simplified), Japanese, Korean
Japanese Chinese (Simplified), Chinese (Traditional), Korean
Korean Chinese (Simplified), Chinese (Traditional), Japanese
Arabic Hebrew
Hebrew Arabic

If your clients will be working in an environment in which they will be accessing multiple Host On-Demand configuration servers that may be at different levels, special precautions may be necessary to avoid problems.

Preload Options functions

3270
If you are only using 3270 sessions, you should only download 3270 session components and those features that are used by 3270 sessions. Downloading any other session components adds additional, unnecessary size to the initial download.

3270 Sessions
Select 3270 Sessions to preload 3270 host session functions.

3270 File Transfer
Select 3270 File Transfer to preload the Host File Transfer function. Host File Transfer allows you to transfer files to and from the host.

You must select 3270 Sessions in order to select 3270 File Transfer.

Host Graphics

Select Host Graphics to preload the 3270 Host Graphics function. Host graphics is the display of lines, circles, ellipses, filled areas, images, and other graphics primitives as defined by the graphic orders of the IBM 3179G Color Graphics terminal.

You must select 3270 Sessions in order to select Host Graphics.

Macro Print
Select Macro Print to preload macro print functions (Print Start, Print Extract, Print End). You must select Macro Print in order to select ZipPrint.

ZipPrint
Select ZipPrint to preload ZipPrint functions for your users.

Note
  • The ZipPrint selection is disabled unless Macro Print is selected.
  • You must select 3270 Sessions in order to select ZipPrint.
  • ZipPrint is supported only on 3270 Display sessions.

3270 Printer Sessions
Select 3270 Printer Sessions to preload 3270 printer session functions for your users.

5250
If you are only using 5250 sessions, you should only download 5250 session components and those features that are used by 5250 sessions. Downloading any other session components adds additional, unnecessary size to the initial download.

5250 Sessions
Select 5250 Sessions to preload 5250 host session functions.

5250 File Transfer
Select 5250 File Transfer to preload Host File Transfer functions. Host File Transfer allows you to transfer files to and from the host.

You must select 5250 Sessions in order to select 5250 File Transfer.

ENPTUI for 5250 Sessions
Select ENPTUI for 5250 Sessions to preload Enhanced Non-Programmable Terminal User Interface (ENPTUI) support. ENPTUI enables an enhanced user interface on non-programmable terminals (NPT) and programmable work stations (PWS) over the 5250 full-screen menu-driven interface.

You must select 5250 Sessions in order to select ENPTUI for 5250 Sessions.

5250 Printer Sessions
Select 5250 Printer Sessions to preload 5250 printer session functions for your users.

Other sessions

VT Sessions
Select VT Sessions to preload VT host session functions.

CICS Sessions
Select CICS Sessions to preload CICS host session functions.

The CICS function in Host On-Demand can only be used with the CICS Transaction Gateway V5.01 or later.

FTP Sessions
Select FTP Sessions to preload FTP host session functions.

Connectivity

SLP Support
Select SLP Support to preload Service Location Protocol (SLP) support. SLP enables a client to locate a TN3270 and TN5250 service dynamically, and to attach to the least-loaded server, making it unnecessary for you to know the destination address and port of any specific service.

SSH
Select SSH to preload Secure Shell functions.

Session Security
Select Session Security to preload security features between the workstation and either a telnet server that supports security or the Redirector.

SSL Client Authentication Support
Select SSL Client Authentication Support to preload Secure Sockets Layer (SSL) protocol for client authentication.

You must select Session Security in order to select SSL Client Authentication Support.

View Security
Select View Security to preload the view security function. This allows users to view the client certificate information.

You must select Session Security in order to select View Security.

Features1

Change Session Properties
Select Change Session Properties to preload the option to change session properties.

Basic Macro Functions
Select Basic Macro Functions to preload basic macro functions, including playing, editing, deleting, and recording macros.

Database Access
Select Database Access to preload the components that allow a session to send SQL statements and File Upload statements to a remote database server and retrieve the results of SQL Select statements. These components include all the database functionality except the SQL Wizard and the File Upload dialog (see the next selection).

SQL Wizard
Select SQL Wizard to preload the components for the SQL Wizard and the File Upload dialog.

Color Remap
Select Color Remap to preload the Color Remap function. Color Remap changes the colors for a display session.

Keyboard Remap
Select Keyboard Remap to preload the Keyboard Remap function. This function allows users to view and edit key mappings and custom functions.

Toggle Keypad State
Select Toggle Keypad State to preload the Keypad function. This function allows users to determine whether the keypad is visible on the screen.

Toolbar Customization
Select Toolbar Customization to preload the Toolbar Customization function. This function allows users to customize the toolbar, including adding, editing, removing, and rearranging buttons, and choosing custom images.

Features2

Run Applet
Select Run Applet to preload the Run Applet function. This function allows users to load and run a user-defined applet. For deploying a customer-supplied applet to clients see Deploying customer-supplied Java archives and classes.

Import/Export
Select Import/Export to preload the Import Sessions and Export Sessions functions. This allows users to import an existing session or to export a configured session to distribute to other users.

License Use Management Support
Select License Use Management Support to preload user sessions with License Use Management (LUM) support. Through their user IDs and IP addresses, users report license use statistics to a LUM server so you can determine and validate the number of Host On-Demand licenses that you need.

HLLAPI Support
Select HLLAPI Support to preload support for application programming interfaces (APIs) written using a High-Level Language Application Programming Interface (HLLAPI).

Programmable HOD API
Select Programmable HOD API to preload support for using the Programmable HOD API for custom Java applications and applets.

Cut/Copy/Paste Options
Select Cut/Copy/Paste Options to preload the Cut/Copy/Paste options. This function allows users to customize cut/copy/paste behavior on the host screen.

Textual OIA
Select Textual OIA to preload the Textual OIA component. This function presents the information from the OIA in textual format.

Popup Keypad
Select Popup Keypad to preload the popup keypad. This function allows you to use and customize the popup keypad.

Codepages1
Preload the language or languages of your users.

Codepages2
Preload the language or languages of your users.