Paul Li worked in the Architectural field for small to midsize global firms for over 33 years.  Throughout his tenure in Architecture he has mastered the use and customization of AutoCAD.  Using AutoLISP/Visual Lisp combined with Dialog Control Language (DCL) programming he has developed a number of Apps that enhance the effectiveness of AutoCAD in his profession.  All these Apps actually came out of meeting challenging needs that occurred while he worked in the various offices. Paul has also written a number of articles depicting his past work experience. Some of these articles can be found in the worldwide circulated AUGIWorld Magazine (www.augi.com/publications). Though he recently retired from the Architectural profession, he continues to share the knowledge he has garnered with these customized Apps for AutoCAD.