Installation manual

Appendix D. Netscape 6.0 and Java2-enabled Web browser

issues

Host On-Demand Version 6 clients are supported on Java2-enabled Web browsers,

such as Netscape 6.0, Netscape 6.01, Mozilla 0.9.0, and the IBM Web Browser for

OS/2. These Web browsers use a Java2 Runtime Environment (JRE) plug-in that is

supplied by Sun Microsystems Inc. or IBM. As newer versions are released, IBM

will announce support on the Host On-Demand Web site. Older Web browsers,

such as Microsoft Internet Explorer and Netscape 4.x on Windows, can also use the

Java2 plug-in, but these browsers require converted HTML files to properly call the

Java2 plug-in. Sun Microsystems Inc. provides an HTML converter. See

http://java.sun.com/products/plugin/1.3/docs/html_converter.html for more

information on this tool.

Limitations for Host On-Demand

Java2 has a stricter security model than older versions of Java. This imposes

several restrictions on Host On-Demand:

v Function On-Demand client limitations: The Function On-Demand client will not

work with Java2-enabled Web browsers.

v Host On-Demand Download client limitations: If you use HOD.html to load

your download client, you will not be able to use the following functions:

– 5250 - file transfer

– Host print sessions

– Import/export

– SLP

– License Use Management (LUM)

– Thai sessions

– FTP code-page converter

– Bidirectional VT sessions

– 5250 Hindi sessions

There are three possible solutions to this problem:

– Use the Host On-Demand Download client with Problem Determination. This

client includes all of the Host On-Demand classes and is large.

– Use the Host On-Demand cached client for Java2 browsers.

– Use the Deployment Wizard to generate a set of custom HTML files.

v Cached client limitations: Host On-Demand administrators cannot stage the

upgrade of their clients to Host On-Demand Version 6 using percent upgrade.

v Cached client removal limitations: Cached clients can no longer be removed with

HODRemove.html. Users will need to use the Java Control Panel to clear the

JRE cache. See Removing the cached client section below for more information.

Sun JRE limitations

Limitations with the Sun JRE Version 1.3x on Linux and Solaris functioning with

getDocumentBase() cause most Host On-Demand clients not to work. Linux users

can avoid the problem by using the IBM JRE. Solaris users that use Host

On-Demand Version 6 and a Java2-enabled Web browser can avoid the problem by