1)   Virtual Serial Port Driver XP4 4.0
Using Virtual Serial Port Driver XP4 you can create virtual serial COM port pairs which are virtually connected to each other via virtual null-modem cable and for other Windows applications seen as real serial ports connected via null-modem cable.
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 2)   Network Serial Port Kit 5.4.2
Network Serial Port Kit allows you to connect any serial port devices over TCP/IP network or Internet. Program creates and connects up to 254 virtual serial ports at a time. Physical COM ports can be connected over the network as well.
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 3)   Virtual Serial Ports Driver 6.9
Eltima Virtual Serial Port Driver creates any number of virtual serial ports in your system and connects them into pairs via virtual null modem cable. You can create as many virtual serial ports in your system as possible to fit your needs.
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