1)   Serial Port Splitter 3.5.1 Serial Port Splitter allows to share dataflow of one COM port between several applications or vice versa to join dataflow of several COM port devices to one application. Such universality is achieved by means of virtual serial ports technology. 2)   Network Serial Port Kit 5.1 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. 3)   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.