Active Ports monitors all open TCP and UDP ports on a local computer.
Simple Port Tester is a neat application created to test TCP and UDP ports.
Displays, logs and analyzes all serial port activity in a system.
HW Virtual Serial Port allows creating virual serial port drivers.
List available hosts, open ports, and their characteristics.
Serial Port Tool
Professional debug tool for serial port, TCP/IP, UDP, I2C, HTTP communication.
Odamex Dev Team
Odamex is a free and open source port for the classic first-person-shooter Doom.
Daniel Scharrer, Sebastien Lussier
Arx Libertatis is a cross-platform, open source port of Arx Fatalis.
SmartJump is a tool designed to open PowerBuilder objects.
How wide open is your computer?With LPS you're able to check your computer foropen or listening port....
Port Listener XP is designed to open up fake ports.
usbpicprog is an open source Microchip PIC programmer for the USB port.