Ultra Light Client Guide and Reference


Setting up Java support

For detailed installation instructions, see the release notes for the individual packages.

Setting up support for running standalone applications

  1. Install the JRE.
  2. Set the ULCJREROOT environment variable for the location in which you installed the JRE:
    SET ULCJREROOT=D:\JRE
    
    This variable must be set. If the variable is not set the assumption is that a JRE installation is available on the client machine and the system path and classpath variables must point to this installation.
  3. Install the Swing class libraries.
  4. For JRE 1.1.x, set the ULCSWINGHOME environment variable for the location in which you installed Swing:
    SET ULCSWINGHOME=D:\SWING
    
    For Java 2, the ULCSWINGHOME environment variable is ignored.

Setting up support for running applications over the Web

  1. Install a Java-enabled browser.
  2. Install the JRE.
  3. Set the ULCJREROOT environment variable for the location in which you installed the JRE:
    SET ULCJREROOT=D:\JRE
    
    This variable must be set. If the variable is not set the assumption is that a JRE installation is available on the client machine and the system path and classpath variables must point to this installation.
  4. For JRE 1.1.x, install the Swing class libraries and set the ULCSWINGHOME environment variable for the location in which you installed them:
    SET ULCSWINGHOME=D:\SWING
    
    For Java 2, the ULCSWINGHOME environment variable is ignored.

Important: If you installed Java Plug-In and notice unstable runtime behavior, turn off the JIT compiler from the Java Plug-In Control Panel.

Setting up support for developing applications

  1. Install the JRE.
  2. Set the ULCJREROOT environment variable for the location in which you installed the JRE:
    SET ULCJREROOT=D:\JRE
    
    This variable must be set. If the variable is not set the assumption is that a JRE installation is available on the client machine and the system path and classpath variables must point to this installation.
  3. For JRE 1.1.x, install the Swing class libraries and set the ULCSWINGHOME environment variable for the location in which you installed Swing:
    SET ULCSWINGHOME=D:\SWING
    
    For Java 2, the ULCSWINGHOME environment variable is ignored.
  4. If you plan to internationalize your applications, install the JDK.


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