The web installers allow your users to download a small installer that does not contain the files to install. These files will be downloaded from an server. If you have many optional packs, this can save people�s resources. Its very easy: people download a small Jar file containing the installer, they launch it and choose their packages. Then the installer will get the required packages from individual Jar files located on a server, only downloading those required. It�s that simple.

While building the JEMS Installer from source code, the default target (just ant command) will create a folder ouput\web. 'web' folder will have jems-web-installer-xxxx.jar where xxxx is version number from version.properties for example jems-web-installer-1.2.0.CR1.jar. In addition to this packs jar will also be created for example jems-web-installer-1.2.0.CR1.pack0, jems-web-installer-1.2.0.CR1.pack1 .......... , jems-web-installer-1.2.0.CR1.pack68. The number of pack jar created will be equivalent to number of in install.xml for example    

<webdir>http://labs.jboss.com/portal/jemsinstaller/</webdir>

All the packs jar should be uploaded to the URL specified in