|   | Auto Download of the Java Platform | 
The Windows releases of Java Plug-in and Java Web Start make 
  use of the codebase attribute of the OBJECT element 
  to autodownload and install a particular version of the JRE. See:
By specifying a particular .cab file in the codebase, 
  a particular version of the JRE can be automatically downloaded and installed 
  as required by an applet or application. For a list of the available .cab 
  files, see Autodownload Files. Note that not 
  every release of the JRE has an associated .cab file for autodownload.