The wolips.properties file tells WOLips (and the Ant based build) where the find the various parts of WebObjects and friends. This replaces the wobuild.properties files used by earlier version (pre-New Hotness) of WOLips.

The location of this file differs by operating system:

OS X: /Users/<user>/Library/Application Support/WOLips/wolips.properties
Linux: /home/<user>/Library/Application Support/WOLips/wolips.properties
Windows: C:\Documents and Settings\<your user>\Library\Application Support\WOLips\wolips.properties

The wolips.properties file should be created automatically, but if this does not happen, it can be created manually (e.g. with a text editor). Example contents of this file (modify to match the locations on your machine):

wo.system.root=/System
wo.user.frameworks=/Users/chuck/Library/Frameworks
wo.system.frameworks=/System/Library/Frameworks
wo.bootstrapjar=/System/Library/WebObjects/JavaApplications/wotaskd.woa/WOBootstrap.jar
wo.network.frameworks=/Network/Library/Frameworks
wo.api.root=/Developer/ADC%20Reference%20Library/documentation/WebObjects/Reference/API/
wo.network.root=/Network
wo.extensions=/Library/WebObjects/Extensions
wo.user.root=/Users/chuck
wo.local.frameworks=/Library/Frameworks
wo.apps.root=/Library/WebObjects/Applications
wo.local.root=/