http://www.nevrona.com/Indy/WhatIsIndy.html
What Is Indy
Internet Direct (Indy) - An open source internet component suite comprised of popular internet protocols. Both client and server implementations are included as well as full source code and comprehensive demos
Indy is an open source internet development library for the Borland product line which is based completely on blocking sockets. The Client components are easy to use because you write your transactions in a sequence and the servers are multithreaded.
