Virtual Serial Port Driver allows creating virtual serial port pairs on a PC.
HW Virtual Serial Port allows creating virual serial port drivers.
VSPE is intended for engineers and developers to create/debug/test applications.
It looks like as real hardware serial ports for communications applications.
HHD Software, Ltd.
It allows you to create virtual serial ports and emulate their behavior.
ELTIMA Software GmbH
Virtual Serial Port Driver creates virtual serial ports.
TCP/IP port redirector with many features for the advanced user.
Knocker is a simple and easy to use TCP security port scanner.
Coral Works, Inc.
Software-based TCP/IP port forwarder and network administration service.
Free, unrestricted Virtual Serial Port driver for any TCP/IP devices.
Sollae Systems Co.,Ltd.
ezVSP is a virtual serial port driver and TCP/IP socket program.
Flachmann & Heggelbacher
Establishes TCP connections, accepts a TCP connection on a local port, etc.
The dialer uses one local UDP port and one local TCP port.
NetworkActiv AUTAPF is a UDP and TCP port forwarder.
TCP Port Toolkit is a protocol, data, and timing analyzer.
A multi-threaded and fast TCP port scanner.