J2SE Version (please include all output from java -version flag):

  java version "1.3.0"
  Java(TM) 2 Runtime Environment, Standard Edition (build 1.3.0-C)
  Java HotSpot(TM) Client VM (build 1.3.0-C, mixed mode)

  java version "1.5.0_02"
  Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0_02-b09)
  Java HotSpot(TM) Client VM (build 1.5.0_02-b09, mixed mode, sharing)

Does this problem occur on J2SE 1.3, 1.4.x or 1.5? Yes / No (pick one)
  1.3 N/A
  1.4 Have not tested
  1.5 Yes

Operating System Configuration Information (be specific):
  Windows 98 SE, Windows 2000 Server, possibly others

Bug Description:
  Uninstallation of 5.0 does not restore system to a state where webstart
  1.0 works

Steps to Reproduce (be specific):
  Install webstart 1.0
  Install J2SE 5.0
  Uninstall J2SE 5.0
----
Internet Explorer and Firefox will not detect webstart's presence after the
uninstall.
 Clicking on a JNLP link will cause an "Open With" dialog, where javaws can be chosen, but webpages designed to detect webstarts presence
will not function correctly.

Interestingly, if webstart is chosen in that "Open With" dialog (Windows 2000
Server), it will never change. Once webstart has been associated manually
from the list, an install of 5.0 will NOT activate webstart 5.0. All JNLP
link still end up referring to webstart 1.0. Uninstall and reinstall (all
java and webstart versions) all you want, it will never re-associate the JNLP
extension with anything other than the webstart you chose in the list. IE and
Firefox are both using the Window's default, so it is not the browser that is
having the issue.

To fix this problem, it is necessary to do the association manually again in
the advanced options of Firefox. I assume, though, that other installs in
the future will need tweaking before they will work as well.



Detection code in the HTML page is as follows:
<SCRIPT LANGUAGE="Javascript">
var javawsInstalled = 0;
  isIE = "false";

  if (navigator.mimeTypes && navigator.mimeTypes.length) {
x = navigator.mimeTypes['application/x-java-jnlp-file'];
if (x) javawsInstalled = 1;
} else {
isIE = "true";
  }

  function jumpToPage(url1, url2) {
if (javawsInstalled) {
document.location.replace(url1);
} else {
document.location.replace(url2);
  }
}
</SCRIPT>

<SCRIPT LANGUAGE="VBScript">
on error resume next
If isIE = "true" Then
If Not(IsObject(CreateObject("JavaWebStart.IsInstalled"))) Then
javawsInstalled = 0
Else
javawsInstalled = 1
End If
End If
</SCRIPT>















###@###.### 2005-04-08 15:36:17 GMT