ES is a software to manage electronic submission for conferences. At present I do NOT distribute the software. You have to contact the authors (Fabio) in order to use it for your own conference. It has been written from scratch for one of the Swiss Chemical Society (SCS) Meetings (back in 2004) and has been improved with the collaboration of one of the chairman (Dr. Daniel Stahl). A second SCS Meeting took place and collaboration with Ferdinand Wild changed the simple php code to a tool for conferences. PD Hans Peter Luethi contributed to the fine tuning (and much more details) of the latest version (2010-2012) . It addresses small/medium size meetings (tested up to 500 participants) and does not include extra service: hotels and/or credit card payments. It is not yet freely distributed because it is not yet a "plug and play" simple installation tool.