4ecd

OSCommerce (www.oscommerce. com) is a free ecommerce solution, available under the GNU public license.  Uses PHP/mySQL , has many features needed for upgrade and the software is constantly upgraded. It has an active developer and support forum.

Zencart is based on OSCommerce and overcomes many of its limitations.

Perl : Interchange, not very reliable

ASP :  VP-ASP or Comersus

ASP.NET : AspDotNetStorefront ( www.aspdotnetstorefront. com) , complete source code is available to the buyer who can modify it as required

Paypal shopping cart : free , but a fee is deducted for every payment received by a Paypal business or premier account