These UDP routines were originally written for IBPro by Valentin Angelovski, and later converted for use with EB and posted by forum user Pistol350.
UDP is a network communication protocol that works faster than TCP, but is not quite as safe. But by using numbered packets, it is easy to detect if packets are lost, and resend them.
It's main use is for applications where fast traffic is a must, such as multiuser games. But also ideal for communications on a LAN, or via localhost between applications running on the same pc.