First, you must use UDP protocol.
Second, you must know remote port of remote machine. Easiest way is all machines to use the same remote port, hard-coded into .EXE.
Third, to send to many recipients, you must do loop for all recipients. In this loop you set remotehost to current recipient (and remoteport to target port if all machines have different ports) and send message.
Plamen Ivanov
MCSD .NET Early Achiever and MCAD .NET Charter Member (VB .NET/SQL Server 2000)
MCSD (VB 6.0/SQL Server 2000) br>
VB (.NET) - what other language do you need in the whole Universe?...