Download and install Xampp from here: https://www.apachefriends.org/download.html The version I used was windows with php 8.1.12 It will install in the directory c:\xampp In c:\xampp\htdocs create the directory “catalog” Download the latest version of OSC4 from here: https://www.oscommerce.com/ Once downloaded unzip the files to c:\xampp\htdocs\catalog Start the xampp control panel and start Apache, MySql & Mercury In xampp control panel click on MySql admin tab