PHP on Linux or Windows hosting (99% of hosting environments). Run the script and it will tell your system is compatible.
Please note that unless you are a paying subscriber to the Retortal service we do not offer any support for this script, by either email or telephone. Please do not ask for support. Your website design team should be able to implement this using the instructions provided in the file.
If you would like us to install the script for you the cost is £99.95 GBP + VAT or FREE installation with any of our affordable social media marketing plans.
The script works well, we have thousands of copies of it running all over the world.
The Retortal.com Development Team.