gistfile1.txt

// Location to your properties file
var pFile = 'location_to_your_properties_file/filename.properties';
// Init Props
var props = CreateObject("java","java.util.Properties").init();
// Load the file into the props
props.load( CreateObject("java","java.io.FileInputStream").init(pFile) );

// Assume properties file has the following value
// Property1=Foo
// Property2=Bar
// Property3=Foobar

// You can now access them via:
writeoutput( props.getProperty('Property1') );

// Thus, if you knew an array of properties
var expectedProperties = ['Property1','Property2','Property3'];
// Let's output 
for(var e in expectedProperties) writeoutput(prop.getProperty(e));