zzl wrote:
I need eznec/4 pro now,where can I download it.

You can't download it. First go to http://eznec.com/eznecpro.htm and
read the "Additional EZNEC/4 Information" section. Then after you've
obtained the required NEC-4 license see http://eznec.com/ordering.htm
for ordering information.

I'm afraid Lawrence Livermore will need more of a name than "zzl". And
so will I.

Roy Lewallen, W7EL