Additional Options

This window contains additional options:

Choose Host On-Demand Java Level
Choose Client Type
Configure Preloads
Configure Advanced Options

Choose Host On-Demand Java Level
Specifies the type of browser that your clients use to run this HTML file: a Java enabled browser. If you select the Web Start client, the Java level automatically changes to Java and Auto Detect are disabled.

Java
Click Java if all your clients use Java browsers.
Advantages:

• Clients with Java enabled browsers can use the advanced Java features of Host On-Demand, including the accessibility features.

Auto Detect
Click Auto Detect if clients use Java enabled browsers, or if you deployed Host On-Demand over the Internet so that you are not sure which type of browser your clients use.
Advantages:

• Clients running either type of browser can use the HTML file.
• Clients with Java enabled browsers can use the advanced Java features of Host On-Demand.

Disadvantages:

• The code that detects the type of browser takes a small amount of time to run.

Warning to customers running Host On-Demand Version 6 or earlier using the configuration server-based model If all three of the following conditions apply: You have a Host On-Demand Version 6 or earlier deployed using the cached client Your deployment uses the configuration server-based model You want to control the cached client upgrade process using the cached client controls The Auto Detect HTML file format is not compatible with client code from previous versions of Host On Demand. If any one of the above does not apply, you can select Auto Detect.

Choose Client Type
Select the client you want to use. Click Cache/Web Start Options if you want to configure caching or Web Start options.

The cached client, download client, and Web Start client use the same Host On-Demand client components. The cached client and Web Start client start more quickly than the download client (except the first time you run the cached client) and put a lighter load on the Host On-Demand server.

Cached client

The first time the cached client runs on a workstation, it downloads the Host On-Demand client components from the Host On-Demand server, storing most of the components on the workstation's hard drive. When the cached client runs subsequently, it uses the components stored on the hard drive instead of downloading those components from the server, with the following exceptions:

• Updates
  If the cached client detects an updated version of a component on the server, for example, the system administrator installs a service release of Host On-Demand, then it overwrites the older version of the component on the hard drive with the updated version.
• Components not in the preload list
  If the system administrator excludes a component from the preload list (initial download list) to shorten the initial download time, when the client tries to use that function, the cached client downloads and stores that component.

If your clients work in an environment in which they access multiple Host On-Demand configuration servers that might be at different levels, refer to Cached client support when accessing multiple Host On-Demand servers in the Planning, Installing, and Configuring Host On-Demand guide.

Download client

The download client downloads all the components of the Host On-Demand client each time it runs.

Web Start client

The Web Start client allows client workstations to start Host On-Demand sessions without a browser.

When you select Web Start client, you must specify a code base in the Code base field before Host On-Demand will allow you to navigate forward. The URL that you specify here must identify the Host On-Demand publish directory, for example, http://server_name.mycompany.com/hodalias, where server_name.mycompany.com is the name of the server on which Host On-Demand is installed, and hodalias is the Host On-Demand publish alias. Client workstations use this URL to download the components of the Web Start client. If you installed the Deployment Wizard separately from the Host On-Demand server, then the the Code base field will be prefilled with the Host On-Demand server location that you configured during installation. This URL must contain the full absolute path to the Host On-Demand install base; you cannot use a relative URL as the code base.

If you are using the Host On-Demand Java Web Start client and load balancing between multiple https servers that download Host On-Demand, then the code base is the URL of the load balancing computer.

You can also specify the code base by clicking Cache/Web Start Options. This opens the Web Start Settings window. If you already specified a code base on the Additional Options window, the Code base field on the Web Start Options tab will be prefilled with that value. If you need to make a change to the code base value, you may either make the change on the Web Start Options tab or return to the Additional Options window. The change will be effective from either location.

When you run the Web Start client for the first time on a client workstation, it downloads the components of the Host On-Demand client from the Host On-Demand server and stores them on the hard drive of the client workstation. Subsequently when you start the Web Start client, it uses the components stored on the hard drive instead of downloading those components from the server, with the following exceptions:

• Updates
  If the Web Start client detects an updated version of a component on the server, for example, the system administrator installs a service release of Host On-Demand, then it overwrites the older version of the component on the hard drive with the updated version.
• Components not in the preload list
  If the system administrator excludes a component from the preload list (initial download list) to shorten the initial download time, when the client tries to use that function, the Web Start client downloads and stores that component.

Configure preloads

Click Preload Options 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.

Configure advanced options
Click Advanced Options to configure additional HTML parameters, a code base, HTML templates, problem determination settings, user updates, and session appearance (including applet size). You can also use this panel to configure other options that are not normally required to configure Host On-Demand, such as Session Manager APIs, server connection options, language, and the number of sessions allowed.

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