HW VSP adds a virtual serial port (COM5) to the system and redirects all
communication over TCP/IP to remote IP address. HW VSP is free in
unlimited version, it supports Windows 2000 and XP. HW VSP works with any
TCP/IP device, it can work as a TCP server as well as a TCP Client.
HW VSP supports remote RS232 port control (speed, parity, stop bits,
etc..) over the RFC2217 (NVT). More virtual COMs can be created
when launched with parameters.