Hi,

We are trying to figure out the best way to support a Windows XP SP2
configuration where the users regularly access (4 to 5) java applets
that all require different versions of the jre.  We have between 15 and
20 users.

Each applet is written by a separate third party and we have no control
or influence on their development activities, the version of the jre
they use, etc.  The applets are updated several times througout the
year and frequently require newer versions of the jre.  Many times, a
user will download a new version of the jre without informing IT.  Then
sometime in the future, the user will experience some sort of problem.

The users are non-technical and we are trying to architect a user
friendly solution.  The use of the applets is mission critical to this
group of users.

OS      = Microsoft Windows XP Professional Version 2002 Service Pack 2
Browser = IE Version 6.0.2900.2180.xpsp_sp2_gdr.050301-1519

An example of a problem/resolution that we are having is as follows:

1. User visits web site A.  Applet downloads and is successful.
2. User finishes task at web site A, but leaves browser open.
3. User visits web site B.  Applet downloads, but fails to load.
4. User closes browser.
5. User visits web site B.  Applet downloads and is successful.

The above is just one simple example.  Opening/closing the browser is
one potential solution that we have considered.  However, most of these
applets require some sort of advanced authentication such as smart
cards, secure id cards, etc., and the users may flip back/forth between
the applets multiple times.

Other solutions that we are considering:

- separate computers for each applet
- virtualization
- citrix (or equivalent)

Each of the above has pros/cons especially when factoring in the
various authentication devices.

Any advice would be appreciated.

TIA...Joe