User`s guide

Chapter 4, Migrating and Upgrading 75
Migrating from Enterprise Server 3.6
changed from the previous version. If you want to update the old files to the
new settings, refer to the .default files. You can also refer to the .default
files in the future if you want to revert to the iPlanet Web Server 4.1 default
settings.
Server-side Java Applets (HttpApplets)
Server-side Java applets (HttpApplets) are no longer supported. Instead use
Java servlets. You will need to rewrite your server-side Java applets as servlets
and reinstall them.
Web Application Interface
Enterprise Server 3.0 provided an API, called the Web Application Interface
(WAI), to extend server functionality. With iPlanet Web Server 4.1, developers
are encouraged to use industry-standard Java servlets for any future
applications they develop. WAI is still supported, but iPlanet Web Server 4.1
focuses on supporting Java servlet development.
By default, the WAI component is not installed when you install the server. You
must manually select it for installation. If you did not select WAI when you
installed iPlanet Web Server 4.1, you can run the installer again and install just
the WAI component.
In addition, iPlanet Web Server no longer includes an Object Request Broker
(ORB) as part of the release. If you want to continue using WAI, you must
obtain the ORB yourself. To get the Visibroker 3.3 for C++ ORB, or the
Visibroker 3.4 for Java ORB, contact Inprise at the following URL:
http://www.inprise.com/visibroker/download
If you are migrating from Netscape Enterprise Server 3.6, you must still get an
updated version of the ORB. The ORB shipped with Enterprise Server 3.6 is an
earlier version which is no longer supported.
Warning You must install the ORB before migrating your Enterprise Server. If you do
not, you will get an error message when you try to start your migrated server
instance.