Hi,
IBM WebSphere Application Server Version 3.5 Fix Pack 2 (also known as Version 3.5.2) introduces support for WAR files. However, Fix Pack 2 has been designed to maintain compatibility with existing applications. As such, WAR files are only used as a deployment vehicle in Version 3.5.2. After a WAR file is installed into the server runtime, the WAR file itself is no longer used.
Regards,
Fearo