This is the 2003 version of the Java interface for Walter Van Hamme's limb darkening tables. The file ld2003.zip contains everything you need. Just unzip it and run the ld.bat file under Windows. If you're using Unix/Linux download the ld.sh script and use it to run the program. You need to have the Java runtime installed. You can get the Java runtime at http://java.sun.com/j2se/downloads.html and any version higher than 1.1.8 should work. This version is completely rewritten to add some flexibility. The way the program works is to look for all of the limcof*.gz (i.e. gzipped versions of Walter's bandpass coefficient files) in the same directory as the program. It then parses all of those files to get the various coefficients for the metallicity, Teff, log(g) grid. This means you can add new metallcities very easily as they become available.