VSPD.net 

Network Virtual Serial Ports Driver is an advanced utility, the purpose of which is to emulate null-modem cable on computers located in a TCP/IP LAN or connected to the Internet by creating any number of pure virtual serial ports in your system.
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Virtual Serial Port ActiveX Control 

Create virtual serial port directly from your application and work with it. Full serial port software emulation. Created virtual serial port looks like real serial port for other Windows applications. Compatible with VB, VC++, C++ Builder and Delphi.
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Virtual Serial Port Driver XP4.5 

Virtual Serial Port Driver XP (VSPD XP) is a powerful solution for serial port emulation. It creates virtual com ports in your system and connects them via reliable virtual link, which emulates real null-modem cable.
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Virtual Serial Port ActiveX 

Virtual Serial Port ActiveX control creates a virtual port and lets you view and control any data sent to virtual com port by other applications and respond to them by sending your own data to virtual port. Offers full software serial port emulation.
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Virtual Serial Port ActiveX CE 

Virtual Serial Port ActiveX CE is a powerful advanced ActiveX Control for Embedded platforms that allows your software to create custom additional virtual serial ports in Windows CE system and fully control them from within your own program.
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VSPD Mobile Phone Edition 

VSPD Mobile can create up to 20 pure virtual serial ports in your mobile system, resulting in 10 virtual serial ports pairs available for integration. Both ports in a pair are connected via a virtual null-modem and fully emulate real serial ports.
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