hi, there used to be link on nehe''s site to a very very nice particle engine that had many cool effects, a control panel and a background sound. I d/l it half an year ago and now I''ve lost it. I wanted to d/l it again but can''t find a link. Can anyone please send me a link to it. thanks, san.

I think you mean the Particle Chamber, you can get it here:

http://particlesystems.elemeta.com/html/pchamber.html