parallel port

MacMediSift is mainly a port of MediaSift for Windows from David Griffiths.

FPipe is a source port forwarder/redirector.

Command line port scanner.

RS232 to TCP/IP Converter - Virtual Serial Port Software

An advanced serial port communication tool

Access ports on computers behind firewalls/routers via reverse port forwarding.

Connect to MySQL using SSH, encrypt data, bypass port 3306 blocking

RS232 to TCP/IP converter access equipment connected to remote serial port

Serial port data transfer shareware fully control local machines equipments

SkPortScan ActiveX Control is a lightweight and powerful port scanner control