To use the acad wpline.lsp and wline.lsp are used in the same way.

To use the programs:

1.  Create a drawing in which the lines to be digitized are
    either plines or line entities.  If it is required, digitize
    the lines with the Z coordinate included.  This is done by
    using the elev command or by explicitly entering the
    Z-coordinate.  Additionally turn off or freeze layers
    that have line and pline entities that shouldn't be 
    written out.

2.  Place the lsp files in an ACAD directory -- it doesn't 
    matter where as long as you can find it again and remember
    the path.

3.  At the ACAD prompt enter:
    
       (load "/directory/wpline")

    This will load the program. Acad knows forward slashes (/)
    are directory delimiters.

4.  Again at the ACAD prompt enter WPLINE.  This runs the program.

5.  The program will prompt you for a "File Name" to which the
    polyline or line points will be written.

6.  The program will then prompt you to select the lines to dump.
    The command is the typical ACAD select drawing entities where
    the entities can be selected by "WINDOW, CROSSING, INDIVIDUALLY".
    The ADD and REMOVE entities subcommands can be used.  The 
    program will select all items and begin to write them to the
    output file.

7.  The program will run to completion.  Numbers written
    to the screen are the number of points in the last entity
    written to the file and the running total.  This can
    take a long time to complete.

