extract from zip ito its own directory called "nusoap-for-php5.3-0.7.3" which contains 2 other dirs
go to c:\xampp\php or where you have installed your xampp
open php.ini
go to below lines and see where is the extension dir situated
; Directory in which the loadable extensions (modules) reside.
; http://php.net/extension-dir
; extension_dir = "./"
; On windows:
extension_dir="C:\xampp\php\ext"
copy the "nusoap-for-php5.3-0.7.3" into "C:\xampp\php\ext"
go to following line in the same php.ini:
;extension=php_soap.dll
remove ";" from the front of the line
save the php.ini
If you would like to refer to this comment somewhere else in this project, copy and paste the following link:
; Directory in which the loadable extensions (modules) reside.
; http://php.net/extension-dir
; extension_dir = "./"
; On windows:
extension_dir="C:\xampp\php\ext"
;extension=php_soap.dll