Common Prolog may be loaded into an image with the function call:
(require "prolog")
This will load the Common Prolog system. If Common Prolog will be used extensively, it may be worthwhile to save an image with it pre-loaded. Alternatively, you may simply insert the call above into your LispWorks initialization file (usually .lispworks).
For information about saving an image and the LispWorks initialization file, see the LispWorks Release Notes and Installation Guide .
Note: If you load KnowledgeWorks, then Common Prolog is loaded as part of this.
KnowledgeWorks and Prolog User Guide (Unix version) - 26 Feb 2015