*wysiwyg vertual center*
-lighting simulation software
http://www.stage-electrics.co.uk/vlx/index.htm
*wysiwyg cast lighting*
http://www.castltg.com/cast/group/home.jsp
*A C LIGHT-WYSLWYS*
http://www.wysicad.com


*light converse*
http://lightconverse.de


*vectorworks*
http://www.nemetschek.net
http://www.nemetschek.net/vectorworks/


*esp  studios*- us
http://www.espstudios.com


*design & drafting
http://www.ldassistant.com/


*FUTURE LIGHT-VIRTUAL LIGHTING*
http://www.future-light.com


*cast software*
-vivien
-wysiwyg
-wyg-it 2
http://www.cast-soft.com


*vivien event designer*
http://www.viviendesign.com