Extract all files from the .zip file to a directory of your choice, e.g. c:\Program Files\iQgen. You can use any location you like, just make sure that you remember to replace your installation root directory wherever we refer to it throughout the documentation. In the bin subdirectory of the installation root, you will find scripts called iqgen.bat (for Windows platforms) and iqgen.sh (for Unix or Cygwin installations). Edit the file appropriate for your platform and set JAVA_HOME to the appropriate value, e.g. c:\jdk1.3.1.