Phoebus uses the following Java System properties to locatehelp files, saved state etc.

These system variables are typically set automatically as described below, but when necassary they can be set when starting the product.

Location where phoebus is installed. Has subdirectories lib/, doc/, and is used to locate the online help. Is automatically derived from the location of the framework JAR file.
Location where phoebus keeps the memento and preferences. Defaults to .phoebus in the user’s home directory.