The Sockets Connection package provides Dolphin Smalltalk with an interface to TCP/IP Sockets.

Sockets provide a network communication infrastructure so that two computer processes may exchange data with one another. A Socket represents one end of a network connection. When two parties are connected there is a Socket at each end of the connection. These two end points may reside in the same machine, on separate machines on a LAN or on separate machines on a wide area network such as the Internet. Once a connection has been established, is listed data can be sent in either direction across the link.

Microsoft Windows implements Sockets so that they can be used with a number of underlying network protocols. However, Dolphin Sockets Connection is mainly concerned with using TCP/IP which is the standard Internet-protocol.