This chapter offers you various reference information on XFolder and also some on the WPS which is otherwise hard to get:

• WPS class hierarchy: a diagram of the most important WPS classes
  
• WPS object IDs: a collection of object IDs which should be valid on most systems
  
• WPFolder setup strings: all the setup strings that are valid on folder objects
  
• New XFolder setup strings: new setup strings for folders introduced by the XFolder class
  
• WPS menu ID's: a collection of menu ID's that can be used with the MENUITEMSELECTED setup string