Prerequisites 
The following hardware and software are required for installing this version of SAP NetWeaver Visual Composer:
SAP enhancement package 1 of SAP NetWeaver 7.0
EP usage type, installed as part of this NetWeaver installation
Sun Java JDK, version 1.4.2 and above, installed on the same NetWeaver server
Before you install Visual Composer, do the following:
Remove all older installations of Visual Composer from the machine on which you are installing the Visual Composer server.
Review the SAP NetWeaver Visual Composer Security Guide to ensure that all security measures have been taken prior to the installation.