PortImport

PortImport is the best Software for Windows . Access UDP and TCP ports on machines in Internet-inaccessible, internal LANs.

Windows Udp Tcp And Udp Tcp Udp
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Version 2.0.6

VirtualSocket

VirtualSocket is the best Software for Windows . A tool for socket testing. It can create both TCP and UDP client or server.

Windows Udp Tcp And Udp Tcp Udp
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Version 1.1