1. A computer program product for use with a computer system, the computer system capable of executing a first process and connecting to other processes and a server process over a computer network, the computer program product comprising a computer usable medium having a program code embodied in the medium comprising: a. program code for transmitting an E-mail signal from the first process to the server process over the computer network, the E-mail signal containing a first network protocol address assigned to the first process upon connection to the computer network; b. program code for receiving a second network protocol address from the second process over the computer network, the second network protocol address assigned to the second process upon connection to the computer network; and c. program code, responsive to the second network protocol address, for establishing a point-to-point communication link between the first process and the second process over the computer network.