You should have come across this word ‘ osCommerce’. What is it ?
osCommerce (available as free download from http://www.oscommerce.com) is most comprehensive and popular open source Shopping Cart system in existence. It has a huge list of features and is probably most versatile shopping cart solution and offers vast range of customization choices for on-line storefront owners depending on their need at a very affordable price.
If you are looking for setting up an e-shop, you should definitely consider osCommerce osCommerce is an online shop e-commerce solution that offers a wide range of out-of-the-box features that allows online stores to be setup fairly quickly with ease, and is available for free as an Open Source based solution released under GNU General Public License. osCommerce is a complete online store solution that contains both a catalog frontend and an administration tool backend, which can be easily configured over web. What are Requirements : With no special requirements, osCommerce is able to run on any PHP 4.1+ enabled web server running on Linux, Solaris, BSD, Mac OS X, and Microsoft Windows environments.
What are Advantages : -It is a very good, full-featured, cart. Uses Php and MySQL. -Supports a wide range of credit-card processors and shipping services. -It uses an indexed database and can handle a large number of products (10's of thousands). -Most Hosting companies include installation as Readymade Scripts. One of main benefits of osCommerce is that If your hosting company doesn't install osCommerce you may still be able to install it yourself or have someone install it for you