Taken from the documentation from ZephWare.com 
All credits for this module go to Mike Wattier.

Zone Shipping Module – Country Version 1.0 


This module was born out of the frustrations of many phpShoppers not being 
able to solve a simple shipping problem. 
“How do I calculate shipping without the InterShipper module?”
Since most phpShoppers use either flat rate shipping or zone shipping, I decided 
to write a module that would serve both. This module works on the premise that each 
country is a zone, and each zone has a Shipping Cost per Item and a Shipping Limit to each zone.
This is by no means the end all solution! Read that again. Contemplate the implications 
for your specific application.
While this module will solve a couple of problems, shipping is much more complex 
than what is supplied in this module. 

HOWEVER

This module does provide some interesting options for expansion and many of them have 
already been implemented. We do offer a larger COMMERCIAL version of this module that 
is distributed on a case by case basis as it need to be customized to your specific needs. 
While it can be done rather easily, there is still time involved and therefore it is not free. 
Contact geek@devcompany.com for details.

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ENABLING THE MODULE

To activate the Zone Shipping Module, please modify your phpshop.cfg.php:
Set the value to 1 to enable the zone shipping module
would be then: "ZONE_ENABLE" => "1",

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License
 

You can use the Zone Shipping Module - Country Version 1.0 for any commercial and/or 
non-commercial use you want. The Zone Shipping Module - Country Version 1.0 is licensed 
under an Opensource compatible license encouraging the community to improve it, adapt it
and share their developments. Zone Shipping Module - Country Version 1.0 is under the 
Mozilla Public License version 1.1

 
Disclaimer
 

THIS SOFTWARE IS PROVIDED BY devcompany.com ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, 
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 
PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL devcompany.com OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, 
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 
PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 
HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 
NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 
POSSIBILITY OF SUCH DAMAGE.



Credits
The first major credit goes to all of the phpShop developers. Without them, I would have been 
forced to write the whole application myself. They have done a great job with this project from day one.



