After downloading, enter into the directory where you have saved instantjchem-VERSION.zip then uncompress the zip file.
Gives the home directory of your Java by editing instantjchem/etc/instantjchem.conf. (See Howto change IJC's Java.)
You can start applications by script, which you can find in the instantjchem/bin directory.
{primary} Requires Sun’s Java 1.5 (or later). You can download it from Oracle’s Java web site or contact your OS manufacturer.
{primary} You need an expander which can handle
zipextension.