I am a user of AutoCad2004.  I had the opportunity to experiment with the 2006 version recently and noticed that when the TRIM command is called upon, you can eliminate multiple lines at a time by dragging a box. This is would be VERY beneficial to me if I could find a lisp routine that I could run in 2004 to achieve this same result.  I've done a little searching, but the lisp routines I found haven't seemed to work...Could I be doing something wrong? Will 2004 even support a command like this?  I have installed other lisp routines in the past.  Thanks for any help.