'Win Services', and 'Hw Virtual Serial Port'

Win Services

WinServices is an enhanced Windows Service Manager. You can start/stop services, but also you can view and change all service data such as state, description or name. WinServices allows you to create a snapshot of the current services, and later compare it with a new configuration, to see which services have been changed, added or removed.

http://www.dominetrix.org/winservices.php?lang=en&item=0

Hw Virtual Serial Port

Serial port emulation. This software tool adds a virtual COM port, (COM 5 for example) and redirects the data from this port through the TCP/IP network to another hardware interface, defined by IP address and port number.

http://www.hw-group.com/products/hw_vsp/index_en.html